硕士研究生入学考试试题(世界现代试题库)
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全国硕士研究生入学考试政治试题及答案考试科目:政治考试时间:120分钟试题总分:150分考试类型:选择题、判断题第一部分:选择题(共100分)请根据题意选择最佳答案,并将其填写在答题卡上。
1. 下列哪个是中国共产党的最高纲领?A. 马克思主义基本原理B. 发展生产力C. 建设中国特色社会主义D. 党的总路线2. 全面建设社会主义现代化国家的目标是在什么基础上实现的?A. 全体人民自力更生B. 中国特色社会主义制度C. 民主政治制度D. 公有制经济3. 社会主义初级阶段的基本经济制度是什么?A. 公有制经济为主体B. 混合所有制经济C. 计划经济D. 市场经济4. 我国国家机关的性质是什么?A. 人民的工具B. 人民的服务者C. 资本主义D. 官僚主义5. 阶级斗争是马克思主义的核心观点之一,它的根本目的是什么?A. 保持社会稳定B. 实现社会平等C. 推动社会发展D. 实现无阶级社会......第二部分:判断题(共50分)请根据题意选择“正确”或“错误”,并将其填写在答题卡上。
1. 中国特色社会主义必须坚持党的领导,坚持以人为本,坚持经济持续发展,坚持改革开放,坚持科学发展观。
()2. 中国共产党是中国工人阶级的先锋队,同时也是中国一切劳动者的先锋队。
()3. 我国国家机关的任务是为人民服务,为人民维权。
()4. 政治素质是指一个人具备政治觉悟、政治能力和运用政治方法处理社会问题的能力。
()5. 中国特色社会主义制度是我国的根本制度,不可动摇。
()......答案解析:第一部分:选择题1. A2. B3. A4. B5. C......第二部分:判断题1. 正确2. 正确3. 正确4. 正确5. 正确......注意:以上答案仅供参考,具体以考试或教师要求为准。
希望以上考试题目及答案能够帮助您更好地准备全国硕士研究生入学考试政治科目。
祝您考试顺利!。
北京市联合命题2019年硕士学位研究生入学考试试题(物理化学)√需使用计算器 □不使用计算器一、选择一个正确的答案:(本题共计60分,每小题3分)1. 下列对可逆过程的描述不正确的是( )。
A. 一个带活塞储有一定量气体的气缸,设气缸无重量,控制内外压差无限小,缓慢膨胀到终态,再压缩使系统回到原始态;B. 在整个过程中系统内部无限接近于平衡态;C. 过程进行无限缓慢,环境的温度、压力分别与系统的温度、压力相差甚微;D. 能使系统和环境完全复原的过程。
2. 1 mol 理想气体,从同一始态经绝热可逆压缩和绝热不可逆压缩到相同压力的终态,终态的熵分别为S 1、S 2,则两者的关系为( )。
A. S 1 = S 2 ;B. S 1<S 2 ;C. S 1>S 2 ;D. 无法确定。
3. 在一定的温度和压力下,对于一个化学反应,下列量能用来判断其反应方向的是( )。
A. ;B. ;C. ;D. 。
4. 挥发性溶质溶于溶剂中形成的稀溶液,溶液的沸点会( )。
A. 可能升高或降低;B. 升高;C. 不变;D. 降低。
5. 葡萄糖(C 6H 12O 6)稀水溶液和蔗糖(C 12H 22O 11)稀水溶液凝固时都只析出纯冰,由此可以断定( )。
A. 这两种溶液的凝固点降低系数是不同的;B. 两种溶液溶质的质量分数相同时,其凝固点也相同;r m G ∆!K !r m G ∆r m A ∆C. 两种溶液的凝固点相同时,其沸点也相同;D. 两种溶液的凝固点相同时,其溶质的化学势也相同。
6. 单组分系统的固液平衡线的斜率的值( )。
A. 大于零; B. 等于零; C. 小于零; D. 不确定。
7. 已知A 、B 两液体可组成无最高或最低恒沸点的液态完全互溶的系统,则将某一组成的溶液蒸馏可以获得( )。
A. 两个恒沸混合物;B. 一个纯组分和一个恒沸混合物;C. 两个纯组分;D. 一个纯组分。
8. 与温度有关而与压力无关的平衡常数是( )。
2022全国硕士研究生入学统一考试英语试卷英语(一)模拟3试卷条形码考生注意事项1.答题前,考生应按照准考证上的有关内容填写答题卡上的“考生姓名”、“报考单位”、“考生编号”等信息,粘贴“考生信息条形码”。
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考生不按照规定粘贴条形码影响考试的结果,考生责任自负。
3.客观题答案填涂按照答题卡上的要求用2B铅笔完成。
如需改动,必须用橡皮擦干净。
英译汉和写作部分必须用(蓝)黑色字迹钢笔、圆珠笔或签字笔在答题卡2上做答。
字迹要清楚。
考生编号考生姓名Section I Use of EnglishDirections:Read the following passage.For each numbered blank there are four choices marked A,B,C and D.Choose the best one and mark your answers on ANSWER SHEET l.(10 points)Interpersonal communication is your_____1_____interaction with others.Talking to a friend on campus,chatting to a friend on campus,chatting on the phone with a classmate about an_____2_____test, arguing the____3______of a movie with friends,discussing strategies for accomplishing tasks at work, ___4____for a job,and planning the future_____5_____a loved one are all forms of interpersonal communication.Effective interpersonal communication____6____our sensitivity to others and to the situation.One goal of effective interpersonal communication is to maintain relationships,and forming__7___messages that accurately convey our ideas and feelings___8___not offending the other person is key__9___our success.Effective interpersonal communication____10____us.People who can clearly express their ideas,beliefs, and opinions become influential and___11___control over what happens to them and to others that they ___12___.When we accurately and precisely___13____our thoughts,others gain a better____14____for our position.Their understanding and appreciation make it more likely that they will respond in___15____that are consistent with our needs.Effective interpersonal communication helps us manage the___16___we create.Presenting ourselves in such a way that others will___17___and trust us is important in both public and private____18____—whether we’re communicating in a professional setting,___19___our interpersonal skills are vital to getting a job, holding a position,or rising in an organization,or in a private setting where we’re trying to___20____and maintain relationships.1.[A]familiar[B]informal[C]intimate[D]close2.[A]upcoming[B]final[C]mid-term[D]intermediate3.[A]advances[B]strength[C]population[D]fondness4.[A]interview[B]interfere[C]interact[D]interpret5.[A]for[B]with[C]over[D]to6.[A]describes[B]conveys[C]portrays[D]betrays7.[A]sound[B]directory[C]diction[D]verbal8.[A]if[B]when[C]while[D]as9.[A]to[B]of[C]for[D]in10.[A]empowers[B]reinforces[C]supports[D]sustains11.[A]exhaust[B]exert[C]affect[D]enact12.[A]care about[B]care for[C]care with[D]take to13.[A]interpret[B]decipher[C]encode[D]decode14.[A]assessment[B]evaluation[C]appreciation[D]appraisal15.[A]approaches[B]methods[C]ways[D]ends16.[A]impressions[B]practices[C]things[D]experiences17.[A]respect[B]despise[C]mock[D]sneer at18.[A]settings[B]locations[C]situations[D]circumstances19.[A]when[B]where[C]how[D]if20.[A]work[B]build[C]keep[D]retainSection II Reading ComprehensionPart ADirections:Read the following passages.Answer the questions below each passage by choosing A B C or D.Mark your answers on ANSWER SHEET1.(40points)Text OneThe importance and focus of the interview in the work of the print and broadcast journalist is reflected in several books that have been written on the topic.Most of these books,as well as several chapters,mainly in, but not limited to,journalism and broadcasting handbooks and reporting texts,stress the“how to”aspects of journalistic interviewing rather than the conceptual aspects of the interview,its context,and implications.Much of the“how to”material is based on personal experiences and general impressions.As we know,in journalism as in other fields,much can be learned from the systematic study of professional practice.Such study brings together evidence from which broad generalized principles can be developed.There is,as has been suggested,a growing body of research literature in journalism and broadcasting,but very little significant attention has been devoted to the study of the interview itself.On the other hand,many general texts as well as numerous research articles on interviewing in fields other than journalism have been written.Many of these books and articles present the theoretical and empirical aspects of the interview as well as the training of the interviewers.Unhappily,this plentiful general literature about interviewing pays little attention to the journalistic interview.The fact that the general literature on interviewing does not deal with the journalistic interview seems to be surprising for two reasons.First,it seems likely that most people in modern Western societies are more familiar,at least in a positive manner,with journalistic interviewing than with any other form of interviewing.Most of us are probably somewhat familiar with the clinical interview,such as that conducted by physicians and psychologists.In these situations the professional person or interviewer is interested in getting information necessary for the diagnosis and treatment of the person seeking help.Another familiar situation is the job interview.However,very few of us have actually been interviewed personally by the mass media,particularly by television.And yet,we have a vivid acquaintance with the journalistic interview by virtue of our roles as readers,listeners,and viewers.Even so,true understanding of the journalistic interview, especially television interviews,requires thoughtful analyses and even study,as this book indicates.21.The main idea of the first paragraph is that________.[A]generalized principles for journalistic interviews are the chief concern for writers on journalism[B]importance should be attached to the systematic study of journalistic interviewing[C]concepts and contextual implications are of secondary importance to journalistic interviewing[D]personal experience and general impression should be excluded from journalistic interviews22.Much research has been done on interviews in general________.[A]so the training of journalistic interviewers has likewise been strengthened[B]though the study of the interviewing techniques hasn’t received much attention[C]but journalistic interviewing as a specific field has unfortunately been neglected[D]and there has also been a dramatic growth in the study of journalistic interviewing23.Westerners are familiar with the journalistic interview,________.[A]but most of them wish to stay away from it[B]and many of them hope to be interviewed some day[C]and many of them would like to acquire a true understanding of it[D]but most of them may not have been interviewed in person24.The word“empirical”(Para.2)most probably means[A]hypothetical[B]practical[C]reciprocal[D]hysterical25.The text is most likely a part of a________.[A]news article[B]journalistic interview[C]research report[D]prefaceText2The future of space exploration depends on many things.It depends on how technology evolves,how political forces shape competition and partnerships between nations,and how important the public feels space exploration is.The near future will see the continuation of human space flight in Earth's orbit and unpiloted space flight within the solar system.Piloted space flight to other planets,or even back to the moon,still seems far away.Any flight to other solar systems is even more distant,but a huge advance in space technology could drive space exploration into realms currently explored only by science fiction.The1968film2001:A Space Odyssey depicted commercial shuttles flying to and from a giant wheel-shaped space station in orbit around Earth,bases on the moon,and a piloted mission to Jupiter.The real space activities of2001will not match this cinematic vision,but the21st century will see a continuation of efforts to transform humanity into a space faring species.Perhaps the most difficult problem space planners face is how to finance a vigorous program of piloted space exploration in Earth’s orbit and beyond.In1998no single government or international enterprise had plans to send people back to the moon,much less to Mars.Such missions are unlikely to happen until the perceived value exceeds their cost.One belief shared by a number of space exploration experts is that future lunar and Martian expeditions should be aimed at creating permanent settlements.The residents of such outposts would have to"live off the land,"obtaining such necessities as oxygen and water from the harsh environment.On the moon,pioneers could obtain oxygen by heating lunar soil.In1998the Lunar Prospector discovered evidence of significant deposits of ice,a valuable resource for settlers,mixed with soil at the lunar poles.On Mars,oxygen could be extracted from the atmosphere and water could come from buried deposits of ice.The future of piloted lunar and planetary exploration remains largely unknown.Most space exploration scientists believe that people will be on the moon and Mars by the middle of the21st century,but how they getthere,and the nature of their visits,is a subject of continuing debate.Clearly,key advances will need to be made in lowering the cost of getting people off Earth,the first step in any human voyage to other worlds.Space exploration experts have long hoped that as international tensions have eased,an increasing number of space activities could be undertaken on an international,cooperative basis.In addition to the economic savings that could result from nations pooling their resources to explore space,the new perspective gained by space voyages could be an important benefit to international relations.The Apollo astronauts have said the greatest discovery from our voyages to the Moon was the view of their own world as a precious island of life in the void.Ultimately that awareness could help to improve our lives on Earth.26.A flight to other solar systems will be made more possible by_________[A]technological breakthroughs.[B]international cooperation.[C]market competition.[D]public pressure.27.It can be inferred from Paragraph2that human society will become increasingly_________[A]worried about life on other planets.[B]dependent on space tourism.[C]accustomed to long-distance flights.[D]associated with space exploration.28.It is difficult to send people to other planets because of_________[A]lack of capacity of space exploration vehicles.[B]the financial expenditure involved in space travel.[C]controversial nature of space travel.[D]the uncertain future of space exploration.29.According to this text,piloted space missions will need to be_________[A]more exciting than earlier film versions.[B]supported by international organizations.[C]more cost-effective than they appear to be at present.[D]financed by individual governments.30.It is predicted that people who will live on other planets would have to_________[A]appreciate the harsh conditions they encounter there.[B]depend on the natural resources available there.[C]take most daily necessities along with them.[D]engage in scientific research.Text3Big Western oil firms were reporting their results for the third quarter as the oil price climbed towards$100 a barrel during the past few weeks.Record oil prices,it turns out,do not translate into record profits.Oil is now close to exceeding the record set in1979of between$100and$110,depending on how you adjust for inflation and what criterion you use.Yet almost without exception,big oil firms'profits are falling from the peaks reached last year.Exxon Mobil,for example,reported a10%drop in profits in the third quarter,and BP's fell even more sharply.Profits also fell at Chevron,ConocoPhillips and Eni.They rose at Total and Royal Dutch Shell—but only thanks to exchange-rate fluctuations and one-off asset sales.Analysts at Citigroup calculate that,measured in dollars,the biggest oil firms'earnings fell by15%on average.To be fair,the oil price has surged most dramatically since the end of September,although it was also buoyant in the third quarter.The majors'poor showing also reflects lower profits from refining,as the difference in price between petrol and crude oil has fallen from the exceptionally high levels of recent months.But the fact remains that oil giants are struggling to pump more oil and gas.In part,this is due to a quirk of the rules that oblige Western oil firms to share the crude they produce with state-owned oil firms in many countries.The contracts in question often rule that as the price goes up,the volume of oil the foreigners receive decreases.Worse,several countries are changing contracts or tax rules in ways that will further erode the Western oil firms'profits—and in some cases are throwing them out altogether.Rising costs are also a problem.Exxon,which is known for its strict financial discipline,saw costs rise almost twice as fast as revenue in the third quarter.The shortage of labor and equipment that is feeding this inflation is also causing delays to new projects.And there are not enough new projects in the pipeline.The International Energy Agency reckons that the expansion plans of the big Western and state-owned oil firms will leave the world12.5m barrels per day short of requirements in2015.Despite this looming deficit and the glaring price signal,all the big companies except Total produced less oil and gas in the third quarter than they did in the same period last year.According to Citigroup,the average decline in overall output was3.3%.If the relatively steady supply of natural gas is stripped out,the numbers look even worse:oil production fell by9%on average.No matter how high the price goes,the oil majors cannot make a profit from oil they do not produce.31.We can learn from the first paragraph that_______[A]the oil price is not really close to the degree of exceeding the historical record.[B]whether the oil price will break the record rests on the measurement used.[C]the oil price is rising and will continue rising to the historical record.[D]the profit of the oil production industry reached the historical record last year.32.Which one of the following statements is NOT true of the situation of the third quarter?[A]Most oil companies were suffering a serious loss in the third quarter.[B]Some companies also enjoyed rising profits in the third quarter.[C]The oil refining industry was also suffering a surplus reduction in the third quarter.[D]The oil price was on the rise in the third quarter.33.“This inflation”(Paragraph5)refers to_____[A]the rise of oil price.[B]the rise of Consumer Price Index(CPI).[C]the rise of oil production costs.[D]the rise of oil production revenue.34.The example of Citigroup is mentioned to______[A]show the big oil firms can benefit from the oil production[B]illustrate the Citigroup was the largest corporation with oil output[C]explain the causes for the average decline in the overall oil output[D]prove the prevalent trend of reduction in oil production35.Record oil prices do not translate into record profits because of the following reasons except_____[A]the declining margin from oil refining.[B]the disadvantageous change in contracts.[C]the shortage of supply of labour and equipment.[D]the decreasing quantity of oil production.Text4Dreams are said to be the window to the mind.Through the study of dreams,we can catch glimpses into what our subconscious minds are thinking,or what is troubling us at our deepest levels.No all dreams are the same,however,either in content or in meaning.In this respect,the study of bad dreams,nightmares,can yield interesting observations in regard to the mind and status of the dreamer.Indeed,nightmares appear to have been the subject of far more studies than more pleasant dreams,if for no other reason than while pleasant dreams are easily forgotten upon awakening,nightmares tend to linger in our minds is sufficient to demand attention.The sources of our dreams are most commonly attributed to factors in our waking lives.Whether it be emotional challenges,stress in the workplace,relationship problems or a myriad of other possible factors,the thoughts and feelings created in our waking environments are believed to directly influence the content of our dreams.A particular dramatic or traumatic experience during the day would no doubt be encountered again in some form or another during the night.Just as important as actual events in the determination of the content of our dreams are the pre-existing beliefs that we hold.If we encounter some kind of phenomena in our dreams,it is very likely that we already believed in the possibility of the phenomena before the dream.For example,if someone dreams of being abducted by aliens,it’s very likely that,before the dream,he already believed in the existence of aliens.To the extent that dreams are direct reflections of our minds,they will reflect accurately what we believe and hold to be true.The way that we act in dreams bears consideration as well.Often times,our behavior in our dreams reflects hidden desires for that type of behavior in our waking lives.Someone who dreams of revenge may actually desire revenge in real life,and likewise someone who dreams of adventure night after night may be experiencing his mind playing out a desire for more excitement in his everyday life.While the items encountered in our dreams are of great importance in the analysis of dreams,it must be recognized and understood that the same item in two different dreams can easily have entirely different meanings for the two dreamers.For example,a horse in the dreams of an avid equestrian can signify comfort and relaxation,whereas the same horse in the dreams of a hunter can represent excitement and challenge.36.Nightmares are mentioned in paragraph one in order to______[A]give an introduction of our subconscious mind.[B]give an example of one particularly vivid type of dream.[C]provide a justification for the study of influence of dreams.[D]compare the pleasant dreams and nightmares.37.Based on the information provided in paragraph three,if a man dreamed of being hit by a train,it is likely that he_______[A]has been hit by a train before.[B]beliefs in the existence of trains.[C]believes that it is possible to be hit by a train.[D]is afraid of being hit by a train.38.The last sentence of the text gives an example of horses encountered in dreams of two different people in order to______[A]illustrate how the same item can mean different things in different dreams.[B]exemplify the concept that people would,no doubt,react differently to the same images in dreams.[C]illustrate the idea that the emotions can influence the contents of dreams.[D]Support the assertion that the meaning behind dream images is entirely subjective.39.The main point of the text is that_______[A]the study of dreams is based on logic from the waking life of the dreamer.[B]in order to understand the meaning of dreams,we must analyze the beliefs of the dreamers.[C]dreams can reveal much about the personality of the dreamer.[D]the study of nightmares,while multifaceted,is a worthwhile endeavor.40.Which of the following would the author most likely agree with?[A]Nightmares can be good for us,if we use it properly.[B]Those who study dreams must first study the emotion of the dreamer.[C]The study of dreams makes sense if we know what to look for.[D]Dreamers should pay attention to their dreams to discern what those dreams reveal about themselves.Part BDirections:You are going to read a text about the tasks of leaders and the skills required for leadership.Choose the most suitable heading from the list A-G for each numbered paragraphs(41-45).The first and the last paragraph of the text are not numbered.There is one extra heading which you do not need to use.Mark your answers on ANSWER SHEET1(10points).[A]Handling rights based disputes[B]The role of dependence in disputes[C]Methods of settling conflicting interests[D]The use of negotiation for different dispute types[E]Advantages of negotiation over mediation[F]The role of power in settling disagreements[G]Disagreement of interestsThe Nature of DisputesTo resolve a dispute means to turn opposing positions into a single outcome.The two parties may choose to focus their attention on one or more of three basic factors.They may seek to(1)reconcile their interests,(2) determine who is right,and/or(3)determine who is more powerful.41Interests are needs,desires,concerns,fears一the things one cares about or wants.They provide the foundation for a person's or an organization's position in a dispute.In a dispute,not only do the interests of one party not coincide with those of the other party,but they are in conflict.For example,the director of sales for an electronics company gets into a dispute with the director of manufacturing over the number of TV models to produce.The director of sales wants to produce more models because her interest is in selling TV sets;more models mean more choice for consumers and hence increased sales.The director of manufacturing,however,wants to produce fewer models.His interest is in decreasing manufacturing costs and more models mean higher costs.42Reconciling such interests is not easy.It involves probing for deeply rooted concerns,devising creative solutions, and making tradeoffs and compromises where interests are opposed.The most common procedure for doing this is negotiation,the act of communication intended to reach agreement.Another interests based procedure is mediation,in which a third party assists the disputants,the two sides in the dispute,in reaching agreement.43By no means do all negotiations(or mediations)focus on reconciling interests.Some negotiations focus on determining who is right,such as when two lawyers argue about whose case has the greater merit.Other negotiations focus on determining who is more powerful,such as when quarrelling neighbors or nations exchange threats and counter threats.Often negotiations involve a mix of all threesome attempts to satisfy interests,some discussion of rights,and some references to relative power.44It is often complicated to attempt to determine who is right in a dispute.Although it is usually straightforward where rights are formalized in law,other rights take the form of unwritten but socially accepted standards of behavior,such as reciprocity,precedent,equality,and seniority.There are often different―and sometimes contradictory standards that apply to rights.Reaching agreement on rights,where the outcome will determine who gets what,can often be so difficult that the parties frequently turn to a third party to determine who is right. The most typical rights procedure,in which disputants present evidence and arguments to a neutral third party who has the power to make a decision that must be followed by both disputants.(In mediation,by contrast,the third party does not have the power to decide the dispute.)Public adjudication is provided by courts and administrative agencies.Private adjudication is provided by arbitrators.45A third way to resolve a dispute is on the basis of power.We define power,somewhat narrowly,as the ability to pressure someone to do something he would not otherwise do.Exercising power typically means imposing costs on the other side or threatening to do so.The exercise of power takes two common forms:acts of aggression, such as physical attack,and withholding the benefits that derive from a relationship,as when employees stop working in a strike.Section III TranslationDirections:Directions:Read the following text carefully and then translate the underlined segments into Chinese.Your translation should be written clearly on ANSWER SHEET2.(10points)I came away from my years of teaching on the college and university level with a conviction that enactment,performance,dramatization are the most successful forms of teaching.Students must be incorporated, made,so far as possible,an integral part of the learning process.(46)The notion that learning should have in it an element of inspired play would seem to the greater part of the academic establishment merely silly,but that is nonetheless the case.(47)Of Ezekiel Cheever,the most famous schoolmaster of the Massachusetts Bay Colony, his onetime student Cotton Mather wrote that he so planned his lessons that his pupils"came to work as though they came to play,"and Alfred North Whitehead,almost three hundred years later,noted that a teacher should make his/her students"glad they were there."(48)Since,we are told,80to90percent of all instruction in the typical university is by the lecture method, we should give close attention to this form of education.There is,I think,much truth in Patricial Nelson Limerick's observation that"lecturing is an unnatural act,an act for which God did not design humans.It is perfectly all right,now and then,for a human to be possessed by the urge to speak,and to speak while others remain silent.But to do this regularly,one hour and15minutes at a time for one person to drag on while others sit in silence?I do not believe that this is what the Creator designed humans to do."(49)The strange,almost incomprehensible fact is that many professors,just as they feel obliged to write dully,believe that they should lecture dully.To show enthusiasm is to risk appearing unscientific,unobjective;it is to appeal to the students'emotions rather than their intellect.Thus the ideal lecture is one filled with facts and read in an unchanged monotone.The cult of lecturing dully,like the cult of writing dully,goes back,of course,some years.Edward Shils, professor of sociology,recalls the professors he encountered at the University of Pennsylvania in his youth. They seemed"a priesthood,rather uneven in their merits but uniform in their bearing;they never referred to anything personal.Some read from old lecture notes and then haltingly explained the thumb-worn last lines. Others lectured from cards that had served for years,to judge by the worn edges...(50)The teachers began on time,ended on time,and left the room without saying a word more to their students,very seldom being detained by questioners...The classes were not large,yet there was no discussion.No questions were raised in class,and there were no office hours."Section IV WritingPart ADirections:A chemical plant should be responsible for the water pollution in a nearby river.Write a letter to the City Environment Protection Agency to1)state the present situation,2)suggest ways to deal with the problem and3)express your sincere hope.You should write about100words on ANSWER SHEET.Do not sign your own name at the end of the letter. Use“Li Ming”instead.Do not write the address.(10points)Part B52.Directions:Write an essay of160-200words based on the following picture.In your essay,you should1)describe the picture briefly,2)explain its intended meaning,and then3)give your comments.。
2019年招收攻读硕士学位研究生入学考试试题******************************************************************************************** 招生专业及代码:080501 材料物理与化学、080502材料学、080503 材料加工工程、0805Z1 生物材料、085204材料工程(专业学位)考试科目级代码:821材料综合考生请注意:《材料综合》满分150分,考卷包括A《基础化学》、B《材料科学基础》两项内容。
请根据自己的专业背景和未来拟从事的专业研究方向,只能从A、B两项中任选其中一项作答,如果两项都做,仅记A项的成绩。
A、基础化学考生注意:所有答案必须写在答题纸(卷)上,写在本试题上一律不给分。
一、选择题(选择一个正确答案,共20题,每小题2分,共40分)1. 以下哪一个离子半径最小?(A) Li+(B) Na+(C) Be2+(D) Mg2+2.以下哪一个元素的第一电离能最低:(A) Sr (B) As (C) Xe (D) F3.下列分子中,具有偶极矩的是:(A) PCl5(B) H2Se (C) CO2(D) BCl34. 下列分子中,哪一个分子的键级最大:(A) BN (B) Ne2(C) F2(D) N25. 下列哪一种物质的酸性最强:(A) HBr (B) H2Te (C) H2Se (D) PH36. 在酸性溶液中,下列各对离子能共存的是:(A) Fe2+和Ag+(B) SO32-和MnO4-(C) Hg2+和Sn2+(D) Fe2+和Sn2+7. 下列哪一种弱酸的盐最易水解?(A) HA:K a= 1×10-8(B) HB:K a= 2×10-6(C) HC:K a= 3×10-8(D) HD:K a= 4×10-108. 浓度为1.0×10-4 mol/L,K a = 1.0×10-5的某酸性指示剂在变色点时的pH值为:(A) 3.00 (B) 5.00 (C) 7.00 (D) 9.009. 下列说法中,哪个是不正确的:(A) 氢键具有饱和性和方向性(B) 氢键强弱与元素电负性有关四.综合题(共1小题,共25分)请根据下图所示的二元共晶相图分析和解答以下问题(1)分析合金Ⅰ、Ⅱ的平衡结晶过程,并绘制冷却曲线。
2022年全国硕士研究生入学统一考试英语(一)试题SectionⅠUse of EnglishDirections:Read the following text.Choose the best word(s)for each numbered blank and mark A,B,C or D on the ANSWER SHEET.(10points)The idea that plants have some degree of consciousness first took root in the early2000s;the term“plant neurobiology”was1around the notion that some aspects of plant behavior could be2to intelligence in animals.3plants lack brains,the firing of electrical signals in their stems and leaves nonetheless triggered responses that4consciousness,researchers previously reported.But such an idea is untrue,according to a new opinion article.Plant biology is complex and fascinating,but it 5so greatly from that of animals that so-called6of plants’intelligence is inconclusive,the authors wrote.Beginning in2006,some scientists have7that plants possess neuron-like cells that interact with hormones and neurotransmitters,8“a plant nervous system,9to that in animals,”said lead study author Lincoln Taiz,“They10claimed that plants have‘brain-like command centers’at their root tips.”This11makes sense if you simplify the workings of a complex brain,12it to an array of electrical pulses;cells in plants also communicate through electrical signals.13,the signaling in a plant is only14 similar to the firing in a complex animal brain,which is more than“a mass of cells that communicate by electricity,”Taiz said.“For consciousness to evolve,a brain with a threshold15of complexity and capacity is required,”he 16.“Since plants don’t have nervous systems,the17that they have consciousness are effectively zero.”And what’s so great about consciousness,anyway?Plants can’t run away from18,so investing energy in a body system which19a threat and can feel pain would be a very20evolutionary strategy,according to the article.1.[A]coined[B]discovered[C]collected[D]issued2.[A]attributed[B]directed[C]compared[D]confined3.[A]Unless[B]When[C]Once[D]Though4.[A]cope with[B]consisted of[C]hinted at[D]extended in5.[A]suffers[B]benefits[C]develops[D]differs6.[A]acceptance[B]evidence[C]cultivation[D]creation7.[A]doubted[B]denied[C]argued[D]requested8.[A]adapting[B]forming[C]repairing[D]testing9.[A]analogous[B]essential[C]suitable[D]sensitive10.[A]just[B]ever[C]still[D]even11.[A]restriction[B]experiment[C]perspective[D]demand12.[A]attaching[B]reducing[C]returning[D]exposing13.[A]However[B]Moreover[C]Therefore[D]Otherwise14.[A]temporarily[B]literally[C]superficially[D]imaginarily15.[A]list[B]level[C]label[D]local16.[A]recalled[B]agreed[C]questioned[D]added17.[A]chances[B]risks[C]excuses[D]assumptions18.[A]danger[B]failure[C]warning[D]control19.[A]represents[B]includes[C]reveals[D]recognizes20.[A]humble[B]poor[C]practical[D]easySectionⅡReading ComprehensionPart ADirections:Read the following four texts.Answer the questions below each text by choosing A,B,C or D.Mark your answers on the ANSWER SHEET.(40points)Text1People often complain that plastics are too durable.Water bottles,shopping bags,and other trash litter the planet,from Mount Everest to the Mariana Trench,because plastics are everywhere and don't break down easily. But some plastic materials change over time.They crack and frizzle.They“weep”out additives.They melt into sludge.All of which creates huge headaches for institutions,such as museums,trying to preserve culturally important objects.The variety of plastic objects at risk is dizzying:early radios,avant-garde sculptures,celluloid animation stills from Disney films,the first artificial heart.Certain artifacts are especially vulnerable because some pioneers in plastic art didn't always know how to mix ingredients properly,says Thea van Oosten,a polymer chemist who,until retiring a few years ago,worked for decades at the Cultural Heritage Agency of the Netherlands.“It s like baking a cake:If you don’t have exact amounts,it goes wrong.”she says.“The object you make is already a time bomb.”And sometimes,it's not the artist's fault.In the1960s,the Italian artist Picro Gilardi began to create hundreds of bright,colorful foam pieces.Those pieces included small beds of roses and other items as well as a few dozen “nature carpets”—large rectangles decorated with foam pumpkins,cabbages,and watermelons.He wanted viewers to walk around on the carpets—which meant they had to be durable.Unfortunately,the polyurethane foam he used is inherently unstable.It's especially vulnerable to light damage,and by the mid-1990s,Gilardi’s pumpkins,roses,and other figures were splitting and crumbling.Museums locked some of them away in the dark.So van Oosten and her colleagues worked to preserve Gilardi’s sculptures.They infused some with stabilizing and consolidating chemicals.Van Oosten calls those chemicals“sunscreens”because their goal was to prevent further light damage and rebuild worn polymer fibers.She is proud that several sculptures have even gone on display again,albeit sometimes beneath protective cases.Despite success stories like van Oosten’s,preservation of plastics will likely get harder.Old objects continue to deteriorate.Worse,biodegradable plastics designed to disintegrate,are increasingly common.And more is at stake here than individual objects.Joana Lia Ferreira,an assistant professor of conservation and restoration at the nova School of Science and Technology,notes that archaeologists first defined the great material ages of human history Stone Age,Iron Age,and so on after examining artifacts in museums.We now live in an age of plastic,she says,“and what we decide to collect today,what we decide to preserve.…will have a strong impact on how in the future we'll be seen.”21.According to Paragraph1,museums are faced with difficulties in______.[A]maintaining their plastic items[B]obtaining durable plastic artifacts[C]handling outdated plastic exhibits[D]classifying their plastic collections22.Van Oosten believes that certain plastic objects are______.[A]immune to decay[B]improperly shaped[C]inherently flawed[D]complex in structure23.Museums stopped exhibiting some of Gilardi's artworks to______.[A]keep them from hurting visitors[B]duplicate them for future display[C]have their ingredients analyzed[D]prevent them from further damage24.The author thinks that preservation of plastics is______.[A]costly[B]unworthy[C]unpopular[D]challenging25.In Ferreira’s opinion,preservation of plastic artifacts_______.[A]will inspire future scientific research[B]has profound historical significance[C]will help us separate the material ages[D]has an impact on today’s cultural lifeText2As the latest crop of students pen their undergraduate application form and weigh up their options,it may be worth considering just how the point,purpose and value of a degree has changed and what Generation Z need to consider as they start the third stage of their educational journey. Millennials were told that if you did well in school,got a decent degree,you would be set up for life.But that promise has been found wanting.As degrees became universal,they became cation was no longer a secure route of social mobility.Today,28per cent of graduates in the UK are in non-graduate roles,a percentage which is double the average among OECD countries. This is not to say that there is no point in getting a degree,but rather stress that a degree is not for everyone, that the switch from classroom to lecture hall is not an inevitable one and that other options are available. Thankfully,there are signs that this is already happening,with Generation Z seeking to learn from their millennial predecessors,even if parents and teachers tend to be still set in the degree mindset.Employers have long seen the advantages of hiring school leavers who often prove themselves to be more committed and loyal employees than graduates.Many too are seeing the advantages of scrapping a degree requirement for certain roles. For those for whom a degree is the desired route,consider that this may well be the first of many.In this age of generalists,it pays to have specific knowledge or skills.Postgraduates now earn40per cent more than graduates.When more and more of us have a degree,it makes sense to have two. It is unlikely that Generation Z will be done with education at18or21;they will need to be constantly up-skilling throughout their career to stay employable.It has been estimated that this generation,due to the pressures of technology,the wish for personal fulfilment and desire for diversity,will work for17different employers over the course of their working life and have five different cation,and not just knowledge gained on campus,will be a core part of Generation Z’s career trajectory. Older generations often talk about their degree in the present and personal tense:‘I am a geographer.’or‘I am a classist.’Their sons or daughters would never say such a thing;it’s as if they already know that their degree won’t define them in the same way.26.the author suggests that Generation Z should____[A]be careful in choosing a college[B]be diligent at each educational stage[C]reassess the necessity of college education[D]postpone their undergraduate application27.The percentage of UK graduates in non-graduate roles reflect_______.[A]Millennial's opinions about work[B]the shrinking value of a degree[C]public discontent with education[D]the desired route of social mobility28.The author considers it a good sign that____.[A]Generation Z are seeking to earn a decent degree.[B]School leavers are willing to be skilled workers.[C]Employers are taking a realistic attitude to degrees.[D]Parents are changing their minds about education.29.It is advised in Paragraph5that those with one degree should______.[A]make an early decision on their career[B]attend on the job training programs[C]team up with high-paid postgraduates[D]further their studies in a specific field30.What can be concluded about Generation Z from the last two paragraphs?[A]Lifelong learning will define them.[B]They will make qualified educators.[C]Degrees will no longer appeal them.[D]They will have a limited choice of jobs.Text3Enlightening,challenging,stimulating,fun.These were some of the words that Nature readers used to describe their experience of art-science collaborations in a series of articles on partnerships between artists and researchers.Nearly40%of the roughly350people who responded to an accompanying poll said,they had collaborated with artists,and almost all said they would consider doing so in future.Such an encouraging results is not surprising.Scientists are increasingly seeking out visual artists to help them communicate their work to new audiences.“Artists help scientists reach a broader audience and make emotional connections that enhance learning.”One respondent said.One example of how artists and scientists have together rocked the scenes came last month when the Sydney Symphony Orchestra performed a reworked version of Antonio Vivaldi’s The Four Seasons.They reimagined the 300-year-old score by injecting the latest climate prediction data for each season-provided by Monash University's Climate Change Communication Research Hub.The performance was a creative call to action ahead of November's United Nations Climate Change Conference in Glasgow,UK.But a genuine partnership must be a two-way street.Fewer artist than scientists responded to the Nature poll, however,several respondents noted that artists do not simply assist scientists with their communication requirements.Nor should their work be considered only as an object of study.The alliances are most valuable when scientists and artists have a shared stake in a project,are able to jointly design it and can critique each other’s work.Such an approach can both prompt new research as well as result in powerful art.More than half a century ago,the Massachusetts Institute of Technology opened its Center for Advanced Visual Studies(CAVS)to explore the role of technology in culture.The founders deliberately focused theirprojects around light-hance the“visual studies”in the name.Light was a something that both artists and scientists had an interest in and therefore could form the basis of collaboration.As science and technology progressed,and divided into more sub-disciplines,the centre was simultaneously looking to a time when leading researchers could also be artists,writers and poets,and vice versa.Nature’s poll findings suggest that this trend is as strong as ever,but,to make a collaboration work both sides need to invest time and embrace surprise and challenge.The reach of art-science tie-ups needs to go beyond the necessary purpose of research communication,and participants.Artists and scientists alike are immersed in discovery and invention,and challenge and critique are core to both,too.31.According to paragraph1,art-science collaborations have____[A]caught the attention of critics[B]received favorable responses[C]promoted academic publishing[D]sparked heated public disputes32.The reworked version of The Four Seasons is mentioned to show that____[A]art can offer audiences easy access to science[B]science can help with the expression of emotions[C]public participation in science has a promising future[D]art is effective in facilitating scientific innovations33.Some artists seem to worry about in the art-science partnership___.[A]their role may be underestimated[B]their reputation may be impaired[C]their creativity may be inhibited[D]their work may be misguided34.What does the author say about CAVS?[A]It was headed alternately by artists and scientists[B]It exemplified valuable art-science alliances[C]Its projects aimed at advancing visual studies[D1Its founders sought to raise the status of artists35.In the last paragraph,the author holds that art-science collaborations_____[Al are likely to go beyond public expectations[B]will intensify interdisciplinary competition[C]should do more than communicating science[D]are becoming more popular than beforeText4The personal grievance provisions of New Zealand’s Employment Relations Act2000(ERA)prevent an employer from firing an employee without good cause.Instead,dismissals must be justified.Employers must bothshow cause and act in a procedurally fair way.Personal grievance procedures were designed to guard the jobs of ordinary workers from“unjustified dismissals”The premise was that the common law of contract lacked sufficient safeguards for workers against arbitrary conduct by management.Long gone are the days when a boss could simply give an employee contractual notice.But these provisions create difficulties for businesses when applied to highly paid managers and executives. As countless boards and business owners will attest,constraining firms from firing poorly performing, high-earning managers is a handbrake on boosting productivity and overall performance.The difference between C-grade and A-grade managers may very well be the difference between business success or failure.Between preserving the jobs of ordinary workers or losing them.Yet mediocrity is no longer enough to justify a dismissal. Consequently-and paradoxically-laws introduced to protect the jobs of ordinary workers may be placing those jobs at risk.If not placing jobs at risk,to the extent employment protection laws constrain business owners from dismissing under-performing managers,those laws act as a constraint on firm productivity and therefore on workers’wages.Indeed,in“An International Perspective on New Zealand’s Productivity Paradox”(2014),the Productivity Commission singled out the low quality of managerial capabilities as a cause of the country's poor productivity growth record.Nor are highly paid managers themselves immune from the harm caused by the ERA's unjustified dismissal procedures.Because employment protection laws make it costlier to fire an employee,employers are more cautious about hiring new staff.This makes it harder for the marginal manager to gain employment.And firms pay staff less because firms carry the burden of the employment arrangement going wrong.Society also suffers from excessive employment protections.Stringent job dismissal regulations adversely affect productivity growth and hamper both prosperity and overall well-being.Across the Tasman Sea,Australia deals with the unjustified dismissal paradox by excluding employees earning above a specified“high-income threshold”from the protection of its unfair dismissal laws.In New Zealand,a206private members’Bill tried to permit firms and high-income employees to contract out of the unjustified dismissal regime.However,the mechanisms proposed were unwieldy and the Bill was voted down following the change in government later that year.36.The personal grievance provisions of the ERA are intended to____.[A]punish dubious corporate practices[B]improve traditional hiring procedures[C]exempt employers from certain duties[D]protect the rights of ordinary workers37.It can be learned from paragraph3that the provisions may____.[A]hinder business development[B]undermine managers authority[C]affect the public image of the firms[D]worsen labor-management relations38.Which of the following measures would the Productivity Commission support?[A]Imposing reasonable wage restraints.[B]Enforcing employment protection laws.[C]Limiting the powers of business owners.[D]Dismissing poorly performing managers.39.What might be an effect of ERA's unjustified dismissal procedures?[A]Highly paid managers lose their jobs[B]Employees suffer from salary cuts.[C]Society sees a rise in overall well-being.[D]Employers need to hire new staff.40.It can be inferred that the“high-income threshold”in Australia[A]has secured managers’earnings[B]has produced undesired results[C]is beneficial to business owners[D]is difficult to put into practicePart BDirections:Read the following text and answer the questions by choosing the most suitable subheading from the list A-G for each numbered paragraphs(41-45).There are two extra subheadings which you do not need to use. Mark your answers on ANSWER SHEET.(10points)(41)Teri ByrdI was a zoo and wildlife park employee for years.Both the wildlife park and zoo claimed to be operating for the benefit of the animals and for conservation purposes.This claim was false.Neither one of them actually participated in any contributions whose bottom line is much more important than the condition of the animals. Animals despise being captives in zoos.No matter how you enhance enclosures,they do not allow for freedom,a natural diet or adequate time for transparency with these institutions,and it's past time to eliminate zoos from our culture.(42)Karen R.SimeAs a zoology professor,I agree with Emma Marris that zoo displays can be sad and cruel.But she underestimates the educational value of zoos.The zoology program at my university attracts students for whom zoo visits were the crucial formative experience that led them to major in biological sciences.These are mostly students who had no opportunity as children to travel to wilderness areas,wildlife refuges or national parks.Although good TV shows can help stir children's interest in conservation,they cannot replace the excitement of a zoo visit as an intense,immersive and interactive experience.Surely there must be some middle ground that balances zoos treatment of animals with their educational potential.(43)Reg NewberryEmma Marris's article is an insult and a disservice to the thousands of passionate who work tirelessly to improve the lives of animals and protect our planet.She uses outdated research and decades-old examples to undermine the noble mission of organization committed to connecting children to a world beyond their own.Zoos are at the forefront of conservation and constantly evolving to improve how thy care for animals and protect each species in its natural habitat.Are there tragedies?Of course.But they are the exception not the norm that Ms Marris implies A distressed animal in a zoo will get as good or better treatment than most of us at our local hospital.(44)Dean GalleaAs a fellow environmentalist animal-protection advocate and longtime vegetarian.I could properly be in the same camp as Emma Marris on the issue of zoos.But I believe that well-run zoos and the heroic animals that suffer their captivity so serve a higher purpose.Were it not for opportunities to observe these beautiful wild creatures close to home many more people would be driven by their fascination to travel to wild areas to seek out disturb and even hunt them down.Zoos are in that sense similar to natural history and archeology museums serving to satisfy our need for contact with these living creatures while leaving the vast majority undisturbed in their natural environments(45)John FraserEmma Marris selectively describes and misrepresents the findings of our research.Our studies focused on the impact of zoo experiences on how people think about themselves and nature and the data points extracted from our studies.Zoos are tools for thinking.Our research provides strong support for the value of zoos in connecting people with animals and with nature.Zoos provide a critical voice for conservation and environmental protection. They afford an opportunity for people from all backgrounds to encounter a range of animals from drone bees to springbok or salmon to better understand the natural world we live in.[A]Zoos,which spare no effort to take of animals,should not be subjected to unfair criticism.[B]To pressure zoos to spend less on their animals would lead to inhumane outcomes for the precious creatures in their care.[C]While animals in captivity deserve sympathy,zoos play a significant role in starting young people down the path of related sciences.[D]Zoos save people trips to wilderness areas and thus contribute to wildlife conservation.[E]For wild animals that cannot be returned to their natural habitats,zoos offer the best alternative.[F]Zoos should have been closed down as they prioritize money making over animals’wellbeing.[G]Marris distorts our findings which actually prove that zoos serve as an indispensable link between man andnature.Part CDirections:Read the following text carefully and then translate the underlined segments into Chinese.Your translation should be written neatly on ANSWER SHEET.(10points)The Man Who Broke Napoleon’s Codes-Mark UrbanBetween1807and1814the Iberian Peninsula(comprising Spain and Portugal)was the scene of a titanic and merciless struggle.It took place on many different planes:between Napoleon’s French army and the angry inhabitants;between the British,ever keen to exacerbate the emperor’s difficulties,and the marshals sent from Paris to try to keep them in check;between new forces of science and meritocracy and old ones of conservatism and birth.(46)It was also,and this is unknown even to many people well read about the period,a battle between those who made codes and those who broke them.I first discovered the Napoleonic cryptographic battle a few years ago when I was reading Sir Charles Oman’s epic History of the Peninsular War.In volume V he had attached an appendix,The Scovell Ciphers.(47)It listed many documents in code that had been captured from the French army of Spain,and whose secrets had been revealed by the work of one George Scovell,an officer in British headquarters.Oman rated Scovell’s significance highly,but at the same time,the general nature of his History meant that(48)he could not analyze carefully what this obscure officer may or may not have contributed to that great struggle between nations or indeed tell us anything much about the man himself.I was keen to read more,but was surprised to find that Oman’s appendix, published in1914,was the only considered thing that had been written about this secret war.I became convinced that this story was every bit as exciting and significant as that of Enigma and the breaking of German codes in the Second World War.The question was,could it be told?Studying Scovell’s papers at the Public Record Office,London,I found that he had left an extensive journal and copious notes about his work in the Peninsula.What was more,many original French dispatches had been preserved in this collection,which I realized was priceless.(49)There may have been many spies and intelligence officers during the Napoleonic Wars,but it is usually extremely difficult to find the material they actually provided or worked on.Furthermore,Scovell’s story involved much more than just intelligence work.His status in Lord Wellington’s headquarters and the recognition given to him for his work were all bound up with the class politics of the army at the time.His tale of self-improvement and hard work would make a fascinating biography in its own right,but represents something more than that.(50)Just as the code breaking has its wider relevance in the struggle for Spain,so his attempts to make his way up the promotion ladder speak volumes about British society.The story of Wellington himself also gripped me.Half a century ago his campaigns were considered a central part of the British historical mythology and spoon-fed to schoolboys.More recently this has not been the case, which is a great shame.A generation has grown up.SectionⅢWritingPart AWrite an email to a professor at a British university,inviting him/her to organize a team for the international innovation contest to be held at your university.You should write about100words on the ANSWER SHEET.Do not use your own name in the e“Li Ming”instead.(10points)Part BWrite an essay of160-200words based on the following picture below.In your essay,you should1)describe the picture briefly,2)explain its intended meaning and3)give your comments.You should write neatly on the ANSWER SHEET.(20points)2022年全国硕士研究生入学统一考试英语(一)试题参考答案完形填空1.[A]coined2.[C]compared3.[D]though4.[C]hinted at5.[D]differs6.[B]evidence7.[C]argued8.[B]forming9.[A]analogous10.[D]even11.[C]perspective12.[B]reducing13.[A]However14.[C]superficially15.[B]level16.[D]added17.[A]chances18.[A]danger19.[D]recognizes20.[B]poor阅读理解Text121.[A]maintaining their plastic items22.[B]improperly shaped23.[D]prevent them from further damage24.[D]challenging25.[B]has profound historical significanceText226.[C]reassess the necessity of college education27.[B]the shrinking value of a degree28.[C]Employers are taking a realistic attitude to degrees。
天津科技大学二0一一年攻读硕士学位研究生入学考试试题考试科目804 微生物学(试题附在考卷内交回)(请将答案全部写在答题纸上,写在试卷上无效,不必抄题,但必须写清题号)一、名词解释(每小题2分,10个小题.共计20分)1.伴孢晶体2.假菌丝3.发酵4.质粒5.高频转导6.营养缺陷型7.一步生长曲线8.转座因子9.酵母菌呼吸缺陷型菌落10. COD二、填空(每空1分,50个空,共计50分)1.革兰氏阳性细菌细胞壁独有的化学成分是(1) ,而革兰氏阴性细菌细胞壁独有的化学成分是(2) 。
2.细菌的主要繁殖方式是(3) ,霉菌的无性繁殖方式主要以产分生孢子和(4) 孢子为主,酵母菌主要以(5) 和(6) 进行无性繁殖。
3.细菌的芽孢壁厚而致密,通常用芽孢染色法染色后,芽孢呈(7) 色,菌体呈(8) 色。
4.真病毒的基本构造是(9) ,其包括(10) 和(11) 两部分,非基本构造有(12) 和(13) 等。
5.在营养物质的四种运输方式中,只有(14) 运输方式改变了被运输物质的化学组成。
6. 酿酒酵母发酵产乙醇的途径为(15) 途径,细菌发醇产乙醇主要利用(16) 途径。
7.衣原体在寄主内生长繁殖具有独特的方式,它存在(17) 和(18) 两种状态。
8. EMB培养基属于(19) 性培养基,它含有两种染料分别为(20) 和(21) ,大肠杆菌由于能够发酵(22) 产酸,因此菌落呈(23) 色,而沙门氏菌和志贺氏菌的菌落为(24) 色。
9. 微生物细胞内磷酸盐也来源于营养物中的磷,一般都以(25) 和(26) 这两种物质的形式人为地添加在培养基中以提供磷元素。
10.制备营养缺陷型菌株的实验中,常采用(27) 和(28) 方法来淘汰野生型。
11.化学治疗剂可分为两类:一类是化学合成的化学治疗剂即(29) ,另一类是生物合成的化学治疗剂即(30) 。
12.磺胺的结构与细菌的一种生长因子(31) 高度相似,两者有竞争性拮抗作用。
上海交通大学硕士研究生入学考试试题库(生物化学)一:选择题100’1、对于肌糖原下列哪个说法是错误的A.在缺氧的情况下可生成乳酸B.含量较为恒定C.能分解产生葡萄糖D.只能由葡萄糖合成E.贮存量较大2、丙酮酸羧化酶催化生成的产物是A.乳酸B.丙酮酸C.苹果酸D.丙二酸单酰CoAE.草酰乙酸3、糖有氧氧化、糖酵解和糖原合成的交叉点是在:A.1-磷酸葡萄糖B.6-磷酸果糖C.3-磷酸甘油醛D.6-磷酸葡萄糖E.5-磷酸核糖4、.糖异生过程经过下列哪条途径:A.磷酸戊糖途径B.丙酮酸羧化支路C.三羧酸循环D.乳酸循环E.糖醛酸途径5、人体内不能合成的脂肪酸是A.油酸B.亚油酸C.硬脂酸D.软脂酸E.月桂酸6、机体中以下哪种物质不足会导致脂肪肝:A.丙氨酸B.磷酸二羟丙酮C.VitAD.柠檬酸E.胆碱7、.利用酮体的酶不存在于下列哪个组织A.肝B.脑C.肾D.心肌E.骨骼肌8、.下列哪一项不是呼吸链的组成成分:A.NADHB.NADPHC.FADH2D.FMNH2E.Cytaa39、下列哪一种是磷酸化抑制剂:A.鱼藤酮B.抗霉素AC.寡霉素D.COE.NaN310、下列哪一组全部为必需氨基酸A.苏氨酸,色氨酸,苯丙氨酸,赖氨酸B.异高氨酸,丝氨酸,苏氨酸,缬氨酸C.亮氨酸,蛋氨酸,脯氨酸,苯丙氨酸D.亮氨酸,丝氨酸,缬氨酸,谷氨酸E.亮氨酸,丙氨酸,组氨酸,酪氨酸11、转氨酶的辅酶是:A.维生素B1的衍生物B.维生素B2C.维生素B12的衍生物D.生物素E.维生素B6的磷酸脂,磷酸吡哆醛12、维生素D的最高活性形式是:A.25-羟维生素D3B.维生素D3C.1,25-二羟维生素D3D.7-脱氢胆固醇E.1,24,25-三羟维生素D313、下述哪种分离方法可得到不变性的蛋白质制剂:A.苦味酸沉淀B.硫酸铜沉淀C.常温下乙醇沉淀D.硫酸钠沉淀E.加热14、某一符合米曼氏方程的酶,当[S]=2Km时,其反应速度V等于:A.VmaxB.2/3VmaxC.3/2VmaxD.2VmaxE.1/2Vmax15、酶的非竞争性抑制作用的特点是:A.抑制剂与酶的活性中心结构相似B.抑制剂与酶作用的底物结构相似C.抑制作用强弱与抑制剂浓度无关D.抑制作用不受底物浓度的影响E.动力学曲线中Vmax不变,Km值变小16、上述9肽中含有的碱性氨基酸是:A.组氨酸,精氨酸B.精氨酸,赖氨酸C.谷氨酸,赖氨酸D.谷氨酸,丝氨酸E.丝氨酸,酪氨酸17、欲获得不变性的蛋白质制剂,可采用下述哪种分离方法:A.生物碱试剂沉淀B.重金属盐沉淀C.常温乙醇沉淀D.低温盐析E.加热18、有关全酶的描述下列哪一项不正确:A.全酶由酶蛋白和辅助因子组成B.通常一种酶蛋白和特定的辅助因子结合C.而一种辅助因子则可与不同的酶蛋白结合D.酶促反应的特异性取决于辅助因子E.酶促反应的高效率取决于酶蛋白19、下列哪个过程是酶原的激活过程A.前胶原→原胶原B.胰岛素原→胰岛素C.凝血因子I→IaD.凝血因子II→IIaE.糖原合成D→I20、已知两种酶互为同工酶:A.它们的Km的值一定相同B.它们的等电点相同C.它们的分子结构一定相同D.它们所催化的化学反应相同E.它们的辅基一定相同21、抗干眼病维生素是指:A.VitAB.VitKC.VitCD.VitDE.VitE22、防止恶性贫血的维生素是:A.VitB6B.VitKC.叶酸D.VitB12E.VitB12和叶酸23、己糖激酶(HK)和葡萄糖激酶(GK)之间的差别在于:A.GK受胰岛素的抑制B.GK受G-6的抑制C.GK对葡萄糖的Km值较高D.HK对葡萄糖的亲和力较低E.HK受葡萄糖的诱导24、对于三羧酸循环,下列哪项是错误的:A.它是糖、脂肪和蛋白质在体内彻底氧化的共同代谢途径B.反应不可逆C.催化反应的酶都在线粒体内D.一分子乙酰CoA进入该循环可产生12分子ATPE.四次脱氢的受氢体均为NAD+25、磷酸戊糖通路产生的两种重要中间产物是:A.NADPH+H+和6-磷酸葡萄糖醛酸B.NADH+H+和6-磷酸葡萄糖醛酸C.NADH+H+和5-磷酸核糖D.NADPH+H+和5-磷酸核糖E.FADH2和6-磷酸果糖26、对于下列各种血浆脂蛋白,哪种描述是正确的:A.CM主要转运内源性TGB.VLDL转运外源性TGC.HDL主要将Ch从肝内转运至肝外组织D.LDL主要是将肝外的Ch转运到肝内27、酮体生成的关键酶是:A.HMG-CoA还原酶B.琥珀酰CoA转硫酶C.硫解酶D.硫激酶E.HMG-CoA合成酶28、在下列哪种情况下,可导致脂肪肝的发生:A.高糖饮食B.胆碱的缺乏C.脑磷脂缺乏D.胰岛素分泌增加E.胰高血糖素分泌增加29、Cytaa3的辅基为:A.FMNB.FADC.CoQ10D.血红素AE.血红素30、呼吸链抑制剂抗霉素A专一抑制以下哪一处的电子传递:A.NADH→CoQB.CoQ→CytbC.Cyte→Cytaa3D.Cytaa3→O2E.FAD→CoQ31、下列哪一种是氧化磷酸化的解偶联剂:A.寡霉素-C.COD.鱼藤酮E.2,4-二硝基酚(DNP)32、下列哪一种氨基酸是非必需氨基酸:A.酪氨酸B.苯丙氨酸C.亮氨酸D.异亮氨酸E.赖氨酸33、转氨酶的辅酶来自:A.维生素B1B.维生素B2C.维生素B6D.维生素B12E.维生素C34、下列哪一种氨基酸为生酮氨基酸:A.丝氨酸B.亮氨酸C.苏氨酸D.组氨酸E.蛋氨酸35、构成天然蛋白质的基本单位是:A.L-α-氨基酸B.D-α-氨基酸C.多肽D.α-螺旋E.核苷酸36维持蛋白质一级结构的键是:A.氢键B.盐键C.疏水键D.肽键E.3',5'-磷酸二酯键37.有关辅酶的正确叙述是:A.本质为蛋白质B.决定酶的特异性C.组成单位为氨基酸D.所有酶结构中都含有辅酶E.一种辅酶能与多种酶蛋白结合,形成具有不同特异性的全酶38.把酶蛋白完全水解,其产物为:A.辅酶或辅基B.多肽C.寡肽D.氨基酸E.核苷酸39.用来治疗坏血病的维生素是:A.维生素AB.维生素B族C.维生素CD.维生素DE.维生素E40.体内直接供能物质主要是:A.ATPB.CTPC.GTPD.UTPE.TTP41.使血糖降低的激素有:A.胰岛素B.胰高糖素C.肾上腺素D.生长激素E.糖皮质激素42、糖与脂肪的分解代谢不能生成:A.CO2B.H2OC.ATPD.NADH+E.H2S43、氰化物中毒是因为它阻断了呼吸链的哪个环节:A.NAD+→FMNB.FMN→CoQC.FAD→CoQD.CoQ→CytE.Cyt→O244、RNA的生物合成是指:A.DNA复制B.转录C.反转录D.修复E.翻译45、反密码子位于:A.DNAB.mRNAC.rRNAD.tRNAE.核蛋白体46、DNA半保留复制不需要:A.冈崎片段B.引物酶C.DNA聚合酶D.氨基酰tRNA合成酶E.DNA连接酶47各种蛋白质含氮量很接近,平均为:A.24%B.55%C.16%D.6.25%14、蛋白质不同于氨基酸的理化性质为:A.等电点B.两性电离C.呈色反应D.胶体性48、酶促反应速度与下列因素成正比:A.温度B.PH值C.酶浓度D.底物浓度49、缺乏维生素C将导致:A.坏血病B.夜盲症C.贫血D.癞皮病50、下列哪种激素为降糖激素:A.胰岛素B.胰高血糖素C.生长素D.肾上腺素51、乳酸转变为葡萄糖的过程属于:A.糖酵解B.糖原合成C.糖异生D.糖的有氧氧化52、一分子葡萄糖经有氧氧化可产生多少分子ATP?A.36(38)B.2(3)C.24(26)D.12(15)53、脂肪酸合成的直接原料是:A.乙酰CoAB.甘油C.丙酮酸D.草酰乙酸54、呼吸链中将电子直接传递给氧的组分是:A.NADHB.FADC.Cytaa3D.CoQ55、转运外源性脂肪的血浆脂蛋白是:A.CMB.VLDLC.LDLD.HDL56、2,4-二硝基酚是氧化磷酸化的一种:A.电子传递抑制剂B.磷酸化抑制剂C.解偶联剂D.激活剂57、肌肉在静止状态时,能量的储存形式是:A.肌酸B.磷酸肌酸C.ATPD.GTP58、关于tRNA的结构与功能正确的叙述是:A.tRNA不具有二级结构B.tRNA具有转肽酶活性C.tRNA将氨基酸携至核糖体D.反密码子环不是tRNA特有的59、核糖体的生物活性不包括:A.与mRNA模板结合B.具有P位和A位两个tRNA结合位点C.为蛋白合成提供能量D.水解酶活性60、竞争性抑制剂的动力学特点是A.Km值变大,Vmax不变B.Km值变大,Vmax增大C.Km值变小,Vmax增大D.Km值不变,Vmax变小E.Km值不变,Vmax变大61、关于磷酸果糖激酶,下列哪一个描述是错误的A.是糖有氧化过程中最主要的限速酶B.是变构酶,位于胞浆C.柠檬酸是变构激活剂,ATP为变构抑制剂D.胰岛素能诱导其生成E.催化反应时消耗ATP62、有关葡萄糖酵解的描述,下列哪项错误A.1克分子葡萄糖净生成2克分子ATPB.ATP的生成部位在胞浆C.ATP是通过底物水平磷酸化生成的D.ATP是通过H在呼吸链传递生成的E.ATP的生成不耗氧63、以下哪句话正确:A.蛋白质变性必沉淀B.蛋白质沉淀必变性C.蛋白质凝固必变性D.蛋白质变性必凝固64、蛋白质变性时不应出现的变化是:A.蛋白质的溶解度降低B.失去原有的生理功能C.蛋白的天然构象破坏D.蛋白质分子中各种次级键被破坏E.蛋白质分子个别肽键被破坏65、逆转录酶催化A.以RNA为模板的DNA合成B.以DNA为模板的RNA合成C.以mRNA为模板的蛋白质合成D.以DNA为模板的DNA合成E.以RNA为模板的RNA合成66、反密码子是位于A. DNAB. mRNAC. rRNAD. tRNAE.多肽链67、柠檬酸循环被认为是一个需氧代谢途径,是因为A. 循环中的某些反应是以氧为底物 B .CO2是该循环的一个产物C. 产生了H2OD.还原型的辅因子需通过电子传递链被氧化E.以上都不对68、Km值是指A.酶-底物复合物的解离常数B.酶促反应达到最大速度时所需底物浓度的一半C.达到1/2Vamx时所需的底物浓度D.酶促反应的底物常数E.酶与底物的亲和常数69.下列哪项叙述符合脂肪酸的β氧化:A.仅在线粒体中进行B.产生的NADPH用于合成脂肪酸C.被胞浆酶催化D.产生的NADPH用于葡萄糖转变成丙酮酸E.需要酰基载体蛋白参与70 .脂肪酸在细胞中氧化降解A.从酰基CoA开始B.产生的能量不能为细胞所利用C.被肉毒碱抑制D.主要在细胞核中进行E.在降解过程中反复脱下三碳单位使脂肪酸链变短71.下列哪些辅因子参与脂肪酸的β氧化:A ACPB FMNC 生物素D NAD+72.脂肪酸从头合成的酰基载体是:A.ACP B.CoA C.生物素 D.TPP73.下述关于从乙酰CoA合成软脂酸的说法,哪些是正确的(多选)?A.所有的氧化还原反应都以NADPH做辅助因子;B.在合成途径中涉及许多物质,其中辅酶A是唯一含有泛酰巯基乙胺的物质;C.丙二酰单酰CoA是一种“被活化的“中间物;D.反应在线粒体内进行。
中国科学院大学2020年招收攻读硕士学位研究生入学统一考试试题科目名称:生物化学考生须知:1.本试卷满分为150分,全部考试时间总计180分钟。
2.所有答案必须写在答题纸上,写在试题纸上或草稿纸上一律无效。
一、名词解释(每题3分,共24分)1.转导(transduction)2.甘油磷脂3.ABO血型系统4.断裂基因5.X染色体失活6.酶促反应的米氏方程(Michaelis-Menten Equation)7.必需脂肪酸(essential fatty acids)8.糖原二、单项选择题(每题2分,共36分)1.线粒体的主要功能是什么?()(A) 蛋白修饰(B) 光合作用(C) ATP合成(D) 细胞间信号传导2.下列不属于己糖的是()(A) D-半乳糖(B) D-甘露糖(C) L-山梨糖(D)D-赤藓糖3.下面哪一种蛋白具有帽子结合活性()(A) eIF4A (B) eIF4B (C) eIF4C (D) eIF4E4.结构与次黄嘌呤很相似的别嘌呤醇(allopurinol)对()有很强的抑制作用,治疗痛风。
该病是由于尿酸在体内过量积累而引起的。
(A) 黄嘌呤氧化酶(B) 次黄嘌呤氧化酶(C) 腺嘌呤脱氨酶(D)鸟嘌呤脱氨酶5.生物膜的主要成分是什么?()(A) 葡萄糖(B) 磷脂(C) 淀粉(D) 钙离子6.下列哪种组分不为革兰氏阴性细菌所拥有()(A) 肽聚糖(B) 磷壁酸(C) 脂多糖(D)脂蛋白7.在真核细胞线粒体基质中负责DNA复制的聚合酶是()(A) DNA聚合酶α(B) DNA聚合酶β(C) DNA聚合酶γ(D) DNA聚合酶δ8.用同位素标记的化合物做实验,证明生物体内能利用二氧化碳、甲酸盐、天冬氨酸和甘氨酸作为合成嘌呤环的前体。
嘌呤环中的第1位氮来自()。
(A) 天冬氨酸(B) 谷氨酰胺(C) N10-甲酰四氢叶酸(D) 甘氨酸9.下列哪种氨基酸不属于芳香族氨基酸()(A) 苯丙氨酸(B) 酪氨酸(C) 异亮氨酸(D)色氨酸10.脂肪酸β氧化的β表示什么?()(A) 脂肪酸饱和度(B) 脂肪酸碳链长度(C) 氧化反应方式(D) 脂肪酸上氧化反应发生碳的位置11.三羧酸循环一次产生几个二氧化碳分子?()(A) 6 (B) 4 (C) 2 (D) 112.蛋白质生物合成的方向是()(A) 从N端到C端(B) 从C端到N端(C) 从3'端到5'端(D) 从5'端到3'端13.以下的四种说法中哪一种是对的()(A) SV40病毒基因组表达的一个重要特点是它的RNA剪辑模式比较简单(B) SV40是在人类中先发现,随后又在猴子中发现的致瘤病毒(C) SV40病毒的基因组是一种环形单链的DNA(D) SV40 DNA是同寄主细胞组蛋白(H4、H2a、H2b和H3)相结合14.性激素来源于哪种脂质分子?()(A) 胆固醇(B) 甘油三酯(C) 磷脂(D) 脂肪酸15.稳定蛋白质的三维结构的弱相互作用不包括()(A) 二硫键(B) 范德华力(C) 氢键(D) 疏水作用16.基因治疗中选择接受转移基因的受体细胞的原则以下哪一条是不正确的()(A) 需要较坚固,足以耐受处理(B) 具有增殖优势,生命周期长(C) 易于受外源遗传物质的转化氢键(D) 最好是不具有组织特异性的细胞17.为防止尿苷酸掺入DNA,细胞内尿嘧啶脱氧核苷三磷酸一生成即被dUTPase转变成(),保持尿嘧啶脱氧核苷三磷酸在一个很低的水平。
研究生入学考试心理学试卷及答案第一部分:选择题1. 下列哪个心理学学派强调个体的自我实现和自我认识?A) 行为主义心理学B) 结构主义心理学C) 功能主义心理学D) 人本主义心理学答案:D) 人本主义心理学2. 心理学中,对于人类行为和心理过程的科学研究的定义是什么?A) 心理学B) 心理学方法C) 心理学原理D) 心理学观点答案:A) 心理学3. 下列哪个心理学学派认为行为是受到环境刺激和人类研究历史的影响?A) 行为主义心理学B) 结构主义心理学C) 功能主义心理学D) 人本主义心理学答案:A) 行为主义心理学第二部分:简答题1. 请简要解释条件反射的概念。
答:条件反射是一种研究过程,在这个过程中,一个原本不具备特定反应的刺激,通过与另一个具有该反应的刺激的关联而获得了产生相应反应的能力。
2. 请简要说明经典条件反射和操作性条件反射之间的区别。
答:经典条件反射是指通过将一个中与具有固定反应的刺激进行重复关联,使得中也能引起相同的反应。
操作性条件反射是指通过行为的后果来增强或减弱该行为的发生频率。
第三部分:论述题请论述心理学在教育领域的重要性。
答:心理学在教育领域起着重要的作用。
首先,心理学研究可以帮助教育者了解学生的认知和情绪发展,从而制定更加科学有效的教学策略。
其次,心理学研究可以揭示研究和记忆的原理,帮助教育者设计更好的课程和研究材料。
此外,心理学研究还可以为教育者提供评估学生研究成绩和行为问题的工具。
综上所述,心理学在教育领域的重要性不可忽视。
以上是研究生入学考试心理学试卷及答案,希望可以帮助你更好地准备考试。
考试科目名称:物理光学 请注意:答案必须写在答题纸上(写在试卷上无效)。
(各题标题字号为黑体5号字,题干字号为标准宋体5号字。
)一、填空题(本题30分,每空3分)1. 一凹面镜半径为1.50m,那么它将太阳光聚焦于离凹面镜顶点前 (1) 处。
2. 用波长为550nm 的光做迈克耳孙干涉实验时,移动平面反射镜M1 ,如果视场中心消失的圆环条纹数目为10条,则M1移动的距离为__(2)__3. 牛顿环装置所产生的是等 (3)干涉,当将牛顿环装置中的平凸透镜和平行平板之间的距离逐渐增大时,干涉场中的条纹将逐渐从(4)冒出。
4. 一束线偏振光垂直于晶面射入正单轴晶体后,分解成o 光和e 光,传播速度快的是_(5)__光。
5. 对于一单球面反射镜,其曲率半径为1m ,当物体沿光轴方向向右移动时,该球面反射镜所成的像将向(6)移动。
6. 若某人所戴的眼镜是-500度的,则他的远点在眼前 (7)处。
7. 如图所示,一标准玻璃板AB 和一待测平板B A ''的一段接触,另外一端用一小木片隔开,从而形成干涉装置,单色光垂直照射该装置,若待测面B A ''在C '处有一凹点,则对应凹点的地方,干涉条纹将向(8)方向产生弯曲。
8. 波长为600nm 的单色光垂直照射在宽度为20m μ的单缝,透镜L 的焦距为cm 20,则中央明纹的角宽度为(9) 。
9. 在圆孔衍射过程中,利用波带片划分方法可将圆孔分为6个波带片。
通过设置一光阑,将上述6个波带片的偶数波带片挡住,则对应于圆孔中心的观察屏中心P0处的光强为无圆孔衍射光强的 (10) 倍。
二、选择题(本题30分,每题5分)1. 显微镜的光学筒长即物镜和目镜之间的距离减小时,其放大率会( )。
A 、变小B 、变大C 、不变D 、不确定2. 在杨氏双缝干涉实验中,两条缝的宽度原来是相等的。
在保证双缝间距不变的前提下,现将其中一缝的宽度稍变窄,则( )。
2024全国硕士研究生入学考试初试《311教育学专业基础综合》模拟试题及答案学校:________ 班级:________ 姓名:________ 考号:________一、单选题(35题)1.为了研究教师的强化方式与学生学业成绩之间的关系,某研究者把被试学生分成受表扬组、受训斥组、静听组、无强化组等四种强化方式组开展为期一年的实验研究。
这种研究设汁违背了教育研究的()A.客观性跺则B.创新性原则C.理论联系实际原则D.伦理原则2.20世纪30年代英国的《哈多报告》提出的教育改革的目标是A.初等教育均衡发展B.中等教育面向所有儿童实施C.高等教育大众化D.普通与职业教育融合发展3.人在婴儿时,还是一个软弱无能的生物体,依靠后天的学校教育逐渐的成为一个能有效地参与社会生活的主体,这说明教育具有()A.个体社会化功能B.个体个性化功能C.教育的个人谋生功能D.教育的个人享用功能4.研究问题与研究假设的关系是( )A.研究问题与研究假设没有直接关系B.研究假设的叙述是直接从研究问题的叙述中产生的C.研究问题的叙述比研究假设的叙述更具有操作性D.研究问题就是研究假设5.课程评价的理论和模式有多种,其中一种的核心思想是,目标是课程评价的依据和出发点,通过测量目标的达到程度判断教学效果。
课程的有效性取决于课程实施时学生行为发生的变化,评价者关注课程是否真正发生了作用。
这种评价理论是()A.科学——实证主义课程评价观B.科学——自然主义课程评价观C.人文——自然主义课程评价观D.人文——实证主义课程评价观6.强调古典自由教育,注重经典名著的学习,对美国高等教育和成人教育产生了广泛影响的教育思潮是()A.永恒主义教育思潮B.新托马斯主义教育思潮C.要素主义教育思潮D.现代人文主义教育思潮7.中国古代早起教会学校中开设儒学的经典课程是为了()A.满足在校士人夫子弟的要求B.执行中国政府的相关文教政策C.提高学生对儒家学说的批判能力D.为了在中国文化坏境中立足8.古罗马帝国后期,创立了基督教哲学体系,并为中世纪基督教教育奠定了理论基础的是()A.昆体良B.西塞罗C.奥古斯丁D.托马斯阿奎那9.某研究者对15位优秀乡村教师的教学日记进行了逐级编码分析,以探索乡村教师专业发展的内源性影响因素,构建相应的理论模型()A.行动研究B.叙事研究C.民族志研究D.扎根理论10.某研究团队采用观察法研究幼儿游戏中的冲突事件。
硕士学位研究生入学考试试题
一、名词解释(20分,每题2分)
1、质粒:
2、转座因子:
3、次级代谢:
4、微生物的主要特征:
5、单克隆菌落:
6、生长因子:
7、芽孢(内生孢子):
8、缩短微生物生长延迟期的方法:
9、光合磷酸化:
10、病毒:
二、填空题(30分,每空0.5分)
1. 微生物包括:细胞结构不能独立生活的、;具原核细胞结构的和;具真核细胞结构的、和等。
1977年伍斯(Woese)利用建立分子进化树将生物分为3个域分别是、和。
用自制的显微镜首先观察到微生物的存在。
和是微生物学的奠基人。
(15)
2. 二组分调节系统由细胞膜上和 2 种不同的蛋白质组成。
(2)
3. 霉菌在固体培养基中会生长出、和。
(3)
4. 微生物生长所需的营养物质主要包括、、、、和。
(6)
5. ATP结合性盒式蛋白运输系统主要包括、和
组成。
(3)
6. 基团转位又称为烯醇丙酮酸磷酸(PEP)运输系统(PTS),通常由五种
和一种低相对分子量的。
(2)
1。
硕士学位研究生入学考试试题
一、选择题(共10题,每题3分,共30分,请在每题的3个选项中选择1个最适合的)。
1、不属于聚合物晶体基本形态的是()
A、球晶
B、折叠链片晶
C、伸直链晶体
2、高分子不可能存在的相态是()
A、液晶态B液态C气态
3、高分子链刚性越大,其等效自由结合链的链段长度()
A、越长
B、越短
C、不变
4、结晶聚合物的熔融过程是()
A、放热过程
B、力学状态转变过程
C、热力学相变过程
5、聚合物的theta溶剂是其()
A、良溶剂
B、不良溶剂
C、良溶剂与不良溶剂的分界
6、聚合物的结晶度降低,性能也降低的是()
A、透明性
B、拉伸强度
C、冲击强度
7、可使聚合物玻璃化转变温度提高的方法是()
A、主链上添加孤立双键
B、主链上添加杂原子
C、使分子链交联
8、熔融指数(MI)如下的相同分子结构聚合物流动性最差的是()
A、2
B、5
C、8
9、外力作用频率提高,玻璃化转变温度()
A、增高
B、降低
C、基本不变
10、以下聚合物中,内聚能密度最低的是()
A、橡胶
B、塑料
C、纤维
二、判断题(共10题,每题2分,共20分,请对正确的说法划“√”,对错误的说法划“×”)。
1、玻璃化转变温度的高低与测定方法密切相关,是一个变化较大的值。
()
2、除去外力后,交联聚合物的蠕变一般不能完全回复。
()
1。
硕士研究生入学考试试题(世界现代试题库)1-3-1 4. 联合国于年成立人权委员会。
(1946)2-2-2. 5. 1946年2月间,美国驻苏联代办发回长达8000字的电报,为当时杜鲁门政府正在实施的对苏强硬的“遏制”政策提供了详尽的理论依据。
(凯南)2-2-4 6. 美、英、法于 1984 年6月18日宣布从6月21日起在西占区将发行一种新马克即“B”记马克。
2-2-6 7. 德意志民主共和国成立的时间是年10月7日。
(1949)3-1-3 8. 斯大林逝世于年3月5日。
(1953)3-2-1 9. 1948年8月,保加利亚共产党同党合并,组成了保加利亚共产党。
(社会)3-2-2 10. 1947年1月波兰工人党领导人当选为共和国总统。
(贝鲁特)3-3-1 11. 1948年8月15日,南朝鲜成立了,以汉城为首都,李承晚为总统。
(大韩民国)4-1-2 12. 日本自由党年与民主党(进步党)合并,称自由民主党,简称自民党。
(1955)4-1-6 13. 二战后,倡导德国经济改革的决策人是博士(路德维希·艾哈德)4-2-2 14. 法兰西第四共和国开始于年。
(1946)4-2-3 15. 1951年6月30日,世界上34个国家的社会党、工党、社会民主党组织在联邦德国的召开大会,决定正式成立社会党国际。
(法兰克福)4-3-3 16.艾森豪威尔于年1月宣誓就任美国总统。
(1953)5-1-5 17. 1945年8月17日,宣读《独立宣言》,宣告印度尼西亚共和国诞生。
(苏加诺)5-1-8 18. 1948年5月14日,犹太复国主义组织领袖在特拉维夫现代艺术博物馆门前宣布以色列国诞生。
(本-古里安)5-2-1 19. 1952年7月23日凌晨7点,纳赛尔率领自由军官组织发动起义,推翻了埃及---------王朝,这就是埃及“7·23革命。
”(法鲁克)5-3-5 20. 1960年,发表了《游击战》等著作。
(格瓦拉)5-2-4 21. 加纳独立运动的领导人是著名的泛非运动活动家。
(恩克鲁玛)6-1-5 22. 在第三世界国家的一致努力下, 1971 年中华人民共和国在联合国的合法席位得到恢复。
6-1-6 23. 1968年1月9日,科威特、利比亚、沙特阿拉伯创建阿拉伯石油输出国组织,总部设在科威特。
6-2-2 24. 从1963年9月到1964年7月,中共中央发表了篇评论苏共公开信的文章。
(9)6-2-4 25. 1968年1月,诺沃提尼被解除党中央第一书记的职务,由接任。
(杜布切克)8-1-1 26. 美国总统约翰逊提出的对内政策被称为“伟大社会”,向贫困开战是“伟大社会”的重要组成部8-1-3 27. 著名黑人民权运动领袖马丁·路德·金于年4月4日被种族主义分子杀害。
(1968)8-2-1 28. 1973年以美元为中心的资本主义货币体系即布雷顿森林体系因固定汇率不复存在而崩溃。
(8-2-4 29. 1981年5月10日,法国社会党领袖在总统选举中获胜。
(密特郎)9-1-6 31. 1982年11月,勃列日涅夫逝世后,苏共中央全会选举继任党中央书记。
(安德罗波夫)9-1-11 32. 1990年,苏联形势急剧动荡,3月,率先宣布独立。
(立陶宛)9-2-2 33. 1980年逝世后,南斯拉夫出现群龙无首的局面。
(铁托)9-2-5 34. 匈牙利在全国全面推行新经济体制始于年元旦。
(1968)10-1-1 35. 1966年1月,就任印度总理。
(英·甘地)10-1-4 36. 印度尼西亚的“9.30运动”发生于年。
(1965)10-1-6 37. 1963年10月,正式就任韩国总统。
(朴正熙)10-2-5 38. 1979年4月1日霍梅尼宣布成立伊斯兰共和国,实行三权分立制,同时规定教长是国家至10-2-6 39. 在霍梅尼时期,《古兰经》和《圣训》是指导人们思想和行动的准则,伊朗要求全面恢复伊10-3-2 40. 1969年9月利比亚的卡扎菲领导“自由军官组织”,推翻了王朝。
(伊德里斯)11-1-4 41. 1983年里根提出了“战略防御计划”,即所谓的计划。
(星球大战)11-2-2 42. 1980年1月,首相在访问澳大利亚时,正式提出了“环太平洋构想”。
(大平)1-1-5 1. 朝鲜民主主义人民共和国宣告成立的时间是A.1947年B.1948年C.1949年D.1950 年 (B.1948年)1-1-6 2. 1945年3月在墨西哥的查普特佩克城堡举行的泛美会议上通过了《克莱顿计划》,提出国家是A.墨西哥 B.哥伦比亚 C.阿根廷 D.美国 (D.美国)1-1-7 3. 1945年3月成立的阿拉伯国家联盟总部设在A.突尼斯B.大马士革C.开罗D.巴格达 (C.开罗)1-2-1 4. 1943年6月3日,法兰西民族解放委员成立,其成立地点是A.突尼斯B.阿尔及利亚C.乍得D.利比亚 (B.阿尔及利亚)1-2-7 5. 1945年4月25日联合国成立大会召开,地点在A.芝加哥B.旧金山C.纽约D.华盛顿 (B.旧金山)1-2-9 6. 联合国总部设在A.华盛顿B.日内瓦C.瑞士D.纽约 (D.纽约)1-3-2 7. 1944年12月20当选为墨西哥总统的是A. 卡德纳斯B.卡列斯C.卡兰萨D.阿雷瓦洛 (阿雷瓦洛)2-1-3 8. 1945年11月20日欧洲国际军事法庭开庭,开始了对21名纳粹德国首要战犯的审讯和判决,开庭城市是A.纽伦堡B.汉堡C.慕尼黑D.法兰克福 (A.纽伦堡)2-3-2 9. 1955年5月5正式成为北约成员国的国家是。
A意大利 B 联邦德国 C加拿大 D挪威(B 联邦德国)2-3-4 10. 美国与日本签定《日美安全保障条约》的时间是A. 1951年B.1950年C.1952年D.1953年 (A. 1951年)2-3-5 11. 在美国策划下,美国、英国、法国、澳大利亚、新西兰、菲律宾、泰国和巴基斯坦8国在菲律宾首都马尼拉签定了《东南亚集体防御条约》,时间是A.1952 年B.1953年C. 1954年D.1955年 (C. 1954年)2-3-6 12.1955年11月,在美国的策划和支持下,与英国、伊朗、伊拉克、土耳其一起组成巴格达条约组织的国家是A.印度B.巴勒斯坦C.巴基斯坦D.叙利亚 (C.巴基斯坦)2-3-7 13. 苏联成功地爆炸了第一颗原子弹的时间是A.1947年B.1948年C.1949年D.1950年 (C. 1949年)2-3-9 14. 1947年9月下旬,苏联、波兰、南斯拉夫、保加利亚、罗马尼亚、匈牙利、捷克斯洛伐克、法国、意大利9国共产党和工人党的代表在波兰举行会议,会上决定成立情报局。
其总部设在A贝尔格莱德B 布加勒斯特C布拉格D莫斯科(A贝尔格莱德)2-3-12 15. 美国于1949年抛出的技术援助和开发落后地区的计划为A.第二点计划B.第三点计划C.第四点计划D.第五点计划 (C. 第四点计划)3-1-2 16.1952年10月5日,把苏联共产党(布尔什维克)改称为苏联共产党(简称苏共)的苏共代表大会为A.第十九次B.第二十次C.第二十一次D.第二十二次 (A.第十九次)3-1-4 17. 1956年2月14-24日,赫鲁晓夫做了题为《关于个人崇拜及其后果》的秘密报告的苏共代表大会是A.第十八次B.第十九次C.第二十一次D.第二十次 (D.第二十次)3-2-3 18. 1955年9月,与民主德国正式缔结两国关系条约,使民主德国成为一个主权国家的国家是A.苏联B.联邦德国C.美国D.波兰 (A.苏联)3-2-4 19. 1956年3月,波兰统一工人党中央总书记贝鲁特在莫斯科病逝,之后波党中央全会选举的党中央第一书记为A奥哈布 B 哥穆尔卡 C 葛兰西 D 拉科西(A奥哈布)3-2-5 20. 1956年7月,中央全会解除了拉科西的党中央第一书记职务,由其副手格罗继任,这件事发生在A.波兰B.捷克C.罗马尼亚D.匈牙利 (D.匈牙利)3-3-2 21. 中国人民志愿军把战线稳定在“三八线”附近,1951年4月11日,美国国务院免去了麦克阿瑟的职务,接任的是A.克拉克B.李奇微C.巴顿D.布莱德雷 (B.李奇微)3-3-3 22. 朝鲜战争结束于A.1951年B.1952年C.1953年D.1954年 (C.1953年)3-2-7 23. 1946年6月,当选为捷克斯洛伐克总统的是前流亡政府首脑、民族社会党人A贝奈斯 B 哥特瓦尔德 C贝鲁特 D拉伊克(A贝奈斯)4-1-4 24. 1949年5月23日,德意志联邦共和国宣布成立,总统是A 谢德曼 B皮克 C特奥多尔·豪斯 D台尔曼(C特奥多尔·豪斯)4-2-1 25. 1958年12月法国举行了总统选举,当选为法兰西共和国总统的是A多列士 B蓬皮杜 C戴高乐 D贝当(C戴高乐)4-1- 8 26. 1948年6月22日,苏占区实行币制改革,发行新马克,标记是A.AB.BC.CD.D (D. D)4-1-10 27. 美英于1947年元旦合并占领区,组成了“双占区”。
法国加入并组成“三占区”的时间是A1948年 B1949年 C1950年 D1951年(A1948年)4-1-11 28. 1946年6月,意大利建立了共和国,负责组阁的是A共产党 B社会党 C天民党 D 民社党(C天民党)4-2-4 29. 1945年,英国历史上第三届工党政府建立,出任首相的是工党领袖A梅杰 B希思 C麦克唐纳 D艾德礼(D艾德礼)4-3-4 30. 20世纪五六十年代,美国黑人运动的领袖是A马尔科姆 B马丁·路德·金 C罗莎·帕克斯 D杜波依斯( B马丁·路德·金)4-1-12 31. 20世纪50年代到70年代初,是西方经济发展的“黄金时代”,发展速度最快的国家是A美国 B日本 C西德 D英国(B日本)5-1-2 32. 穆斯林联盟成立于1906年12月30日,该党是仅次于印度国大党的另一民族主义政党。
该党主席为A.尼赫鲁 B布托 C 阿里·真纳 D 谢里夫 (C 阿里·真纳)5-2-2 33. 1953年6月18日埃及新政权宣布废除君主制,正式成立埃及共和国,纳吉布任总统兼总理,副总理是A柴鲁尔 B纳赛尔 C 萨达特 D布迈丁 (B纳赛尔)5-2-334. 阿尔及利亚正式宣告独立的时间是A1961年 B1962年 C 1963年 D1964年 (B 1962年)5-3-1 35. 1958年戴高乐颁布了第五共和国宪法,同意殖民地领地建立共同体内的自治共和国,取代法兰西联邦的是A.法兰西共同体 B 法国 C 法国政府 D.法兰西政府 (A 法兰西共同体)5-3-2 36. 刚果(金)成立的时间是A 1962年B 1963年C 1964年D 1965年 (D 1965年)5-3-4.37. 1952年3月美国在古巴策划武装政变,建立独裁统治。