本科上学期试题一

桂林电子科技大学2017级学生入学教育考试试题学院：_____ __学号：____ ________ 姓名：______ ______ 分数：一、填空题（每题1分，共10分）1、我校始建于 1960 年，1980 年经国务院批准成立桂林电子工业学院， 2006 年更名为桂林电子科技大学。

1990年，江泽民总书记亲临学校视察，并题词“为发展电子工业培养更多的合格人才”。

2、桂林电子科技大学的校训是：正德、厚学、笃行、致新。

2、学生必须按照所属专业培养方案规定的课程和教育教学环节参加学习和考核。

课程分为必修课和选修课两大类。

3、2013年1月，学校顺利通过新增博士学位授予单位立项建设验收，、、等3个立项建设的一级学科博士学位授权点顺利通过评审。

4、我校目前有4个校区，分别是西校区、东校区、花江校区和北海校区。

二、单项选择题（每题2分，共30分）1、学校严格规定，严禁学生到( D )游泳。

A．游泳馆 B．学校游泳池 C．正规游泳场所 D．江河、水库和湖泊等一切自然水域1、在校生每学期开学应在规定时间到校报道注册，未经请假或请假逾期不注册者，按（B）。

A.休学B.自动退学处理C.保留入学资格D.缺课处理2、学生在校园内、外都应注意交通安全，不得驾驶或乘坐( D )出入校园。

A．公交车 B．校车 C．校内巴士 D．摩托车、三轮车等以及其他无运营资格的车辆3、未经学校批准，学生不得擅自组织( D )A．班会 B．宿舍聚餐 C．班级篮球赛 D．校内及户外大型集体活动和集会4、为维护正常的教学秩序，以下说法正确的是：（ B ）A．任何组织和个人均可在学校进行宗教活动。

B．任何组织和个人不得在学校进行宗教活动。

C．不允许任何组织在学校进行宗教活动，但可以允许个人在学校进行宗教活动。

D．不允许任何个人在学校进行宗教活动，但可以允许组织在学校进行宗教活动。

5、关于学生档案，以下说法正确的是：（ A ）A．对学生的奖励、处分材料，学校应当真实完整地归入学校文书档案和本人档案。

五、设函数由方程确定,求.（8分）六、若有界可积函数满足关系式，求。

(8分）七、求下列各不定积分（每题6分，共12分）（1）.八、设求定积分。

（6分）九、讨论函数的单调区间、极值、凹凸区间和拐点坐标.（10分)十、求方程的通解（6分)十一、求证：.（5分）第一学期高等数学（上)（A）卷分标准题3分，共15分）2。

B 3。

D 4。

B 5.D分，共18分）为任意常数)，4. 2 , 5。

6。

分 (6)分解：………………3分…………….6分 (8)导 (3)数）…………6分分解：（1）。

……。

.3分 (6)分分=……………6分时有极大值2,有极小值。

在上是凸的,在上是凹的，拐点为(0,0）………10分十、解；…………………..3分设方程（1）的解为代入（1)得………5分…………………….6分十一、证明：令………………1 分又…。

3分的图形是凸的，由函数在闭区间连续知道最小值一定在区间端点取到。

,所以…………。

5分.（2010至2011学年第一学期)一、单项选择题（15分，每小题3分）1、当时，下列函数为无穷小量的是( ）(A）（B) （C）（D)2．函数在点处连续是函数在该点可导的（）（A）必要条件（B）充分条件（C)充要条件（D)既非充分也非必要条件3．设在内单增，则在内（）（A）无驻点(B）无拐点(C）无极值点(D）4．设在内连续，且,则至少存在一点使（）成立。

（A）（B）（C）(D）5．广义积分当( ）时收敛。

（A) （B) (C）(D）二、填空题（15分，每小题3分）1、若当时，，则;2、设由方程所确定的隐函数,则；3、函数在区间单减;在区间单增；4、若在处取得极值，则;5、若，则；三、计算下列极限.（12分,每小题6分）1、2、四、求下列函数的导数（12分，每小题6分）1、,求2、，求五、计算下列积分(18分，每小题6分）1、2、3、设，计算六、讨论函数的连续性，若有间断点，指出其类型。

（7分)七、证明不等式:当时，（7分）八、求由曲线所围图形的面积。

常微分方程 答案一、填空题（每空一分，共7分）： （1）)()(d d x f y x p xy =+ （2）n （3）x x x 22e ,e -- （4）恒等于零 （5）00002k-1e e e e x x x x x x x λλλλ、、、、（6）①12(),(),...,()n y x y x y x 是线性方程组()dY A x Y dx=的解， ②12(),(),...,()n y x y x y x 线性无关。

二、选择题（每题2分，共16分）： C A C C B B D A三、简释概念（每题3分，共12分）1、全微分方程：形如0d ),(d ),(=+y y x N x y x M 的一阶微分方程，如果左端恰为某二元函数(,)U x y 的全微分，即y y x N x y x M y x U d ),(d ),(),(d +=，则称0d ),(d ),(=+y y x N x y x M 是全微分方程。

函数(,)U x y 称为y y x N x y x M y x U d ),(d ),(),(d +=的原函数。

2、方程()y x f dx dy ,=解的延展定理：方程),(d d y x f xy =的右端函数),(y x f 在区域2R D ⊂上连续；且关于y 满足局部李普希兹条件，则对于D 上任意一点00(,)x y ，方程),(d d y x f xy =以00(,)x y 为初值的解()x ϕ均可以向左右延展，直到(),()x x ϕ任意接近区域D 的边界。

3、方程0=+'+''qy y p y 的特征方程：2+0p q λλ+=4、贝尔曼引理：设()x ϕ是区间[a,b]上非负连续函数，0a x b ≤≤。

若存在00k δ≥≥，使得()x ϕ满足不等式 ()[]0()+,,x x x k d x a b ϕδφττ≤∈⎰,则()x ϕ就满足不等式[]0(),,k x x x e x a b ϕδ-≤∈。

生命科学系本科2010-2011学年第1学期试题分子生物学（A）答案及评分标准一、选择题，选择一个最佳答案（每小题1分，共15分）1、1953年Watson和Crick提出（ A ）A、多核苷酸DNA链通过氢键连接成一个双螺旋B、DNA的复制是半保留的，常常形成亲本——子代双螺旋杂合链C、三个连续的核苷酸代表一个遗传密码D、遗传物质通常是DNA而非RNA2、基因组是（ D ）A、一个生物体内所有基因的分子总量B、一个二倍体细胞中的染色体数C、遗传单位D、生物体的一个特定细胞内所有基因的分子总量3、下面关于DNA复制的说法正确的是（ D ）A、按全保留机制进行B、按3＇→５＇方向进行C、需要4种NTP加入D、需要DNA聚合酶的作用4、当过量的RNA与限量的DNA杂交时（ A ）A、所有的DNA均杂交B、所有的RNA均杂交C、50%的DNA杂交D、50%的RNA杂交5、以下有关大肠杆菌转录的叙述，哪一个是正确的？（ B ）A、-35区和-10区序列间的间隔序列是保守的B、-35区和-10区序列距离对转录效率非常重要C、转录起始位点后的序列对于转录效率不重要D、-10区序列通常正好位于转录起始位点上游10bp处6、真核生物mRNA转录后加工不包括（ A ）A、加CCA—OHB、5＇端“帽子”结构C、3＇端poly（A）尾巴D、内含子的剪接7、翻译后的加工过程不包括（ C ）A、N端fMet或Met的切除B、二硫键的形成C、3＇末端加poly（A）尾D、特定氨基酸的修饰—8、有关肽链合成的终止，错误的是（ C ）A、释放因子RF具有GTP酶活性B、真核细胞中只有一个终止因子C、只要有RF因子存在，蛋白质的合成就会自动终止D、细菌细胞内存在3种不同的终止因子：RF1、RF2、RF39、酵母双杂交体系被用来研究（ C ）A、哺乳动物功能基因的表型分析B、酵母细胞的功能基因C、蛋白质的相互作用D、基因的表达调控10、用于分子生物学和基因工程研究的载体必须具备两个条件（ B ）A、含有复制原点，抗性选择基因B、含有复制原点，合适的酶切位点C、抗性基因，合适的酶切位点11、原核生物基因表达调控的意义是（ D ）A、调节生长与分化B、调节发育与分化C、调节生长、发育与分化D、调节代谢，适应环境E、维持细胞特性和调节生长12、乳糖、色氨酸等小分子物质在基因表达调控中作用的共同特点是（ E ）A、与DNA结合影响模板活性B、与启动子结合C、与操纵基因结合D、与RNA聚合酶结合影响其活性E、与蛋白质结合影响该蛋白质结合DNA13、Lac阻遏蛋白由（ D ）编码A、Z基因B、Y基因C、A基因D、I基因14、紫外线照射引起DNA损伤时，细菌DNA修复酶基因表达反应性增强，这种现象称为（ A ）A、诱导B、阻遏C、正反馈D、负反馈15、ppGpp在何种情况下被合成？（ A ）A、细菌缺乏氮源时B、细菌缺乏碳源时C、细菌在环境温度太高时D、细菌在环境温度太低时E、细菌在环境中氨基酸含量过高时二、填空题（每空1分，共10分）1、某双链DNA分子中，A的含量为15%，则C的含量是35% 。

11-12第一学期期末英语试题A卷考试对象：11本科一、Choose the One that best complete the sentences1.If something unexpected ____ at the office, I will be home late.A risesB comesC arisesD goes2. The board of management ____ seven people.A consistsB comprisesC makes upD composes3. When grandpa turned 85, his eyes began to ____.A breakB loseC defeatD fail4. The people who lived near the river had to ____ the flooding water.A escapeB runC fleeD struggle5. A warm welcome ____ all our customers on their arrival.A awaitsB waitsC awaits forD waits on6.The passengers on the plane ____ their seat belts when it took off.A lockedB closedC securedD buttomed7. It was reported five drivers were ____with drunk driving.A accusedB chargedC blamedD responsible8. If you ____ the law, you must expect to be punished.A breakB cutC failD waste9. We have been making ____ to save enough money to open a shop.A tryB effectC attemptD afford10.The nurse should be ____ to a patient’s needs.A carefulB kindC sensibleD sensitive11.If I have time, I’d like to ____some of the less well-known places.A expressB exploreC expandD explain12.The students shared the same hobby are closely ____ to each other.A linedB linkedC combinedD gathered13.It’s an ____ fact that he has gone bankrupt.A abstractB absoluteC advancedD aggressive14.This new country didn’t come into ____ until the year 1918.A exhibitionB exceptionC exchangeD existence15.Our manager is always out. The vice manager is the ____ head.A virtualB virusC virtuousD visible二、Complete each of the following sentences with an appropriate word in the following. Change the term when necessary.Available reveal comfort namely religiousObstacle impractical various tremble arm1.The bridge ____ as the train went over it.2.His inability to learn foreign languages is an ____to his work.3.The novel ____ his early years as a poor student.4.You may well be intelligent, but you are completely ____.5.Are tickets for concert ____?6.He has read the Bible, but he has never talked about his ____ views.7.You ____ have passed the exam if you had worked harder.8.I try to ____ Mary after her husband died.9.There are ____ celebrations during the Chinese New Year.10.In China, trafic police are not ____.三、Choose the best answer.1.I am glad ____ your mother on my way home.A to seeB to have seenC be seeingD seeing2. The soldier had him ____ with his back to his father.A standingB standC to standD stood3. In 1920, women gained the right ____ in America.A votingB have votedC votesD to vote4. The PLA men helped the villagers ____ for water sources.A lookingB have lookedC looksD look5. Power station employ ____ water to make electricity.A fallingB fallenC fillingD filled6. I was able ____ him to take the job at last.A to persuadeB persuadeC persuadingD persuades7. He looked rather untidy as there were two bottoms ____ from his coat.A loosingB losingC awayD missing8. He promised ____ at home.A stayB to stayC stayingD stays9. Dick is depressed. He dosen’t like ____ life.A marriageB marryC marriedD marrying10.Would you like ____ us how you overcame the difficulties?A tellingB tellC to be tellingD to tell11.He can’t wlk because he has a ____ leg.A brokeB brokenC breakingD break12.The scientists showed the students how steam could be made ____ work.A doB doingC to doD does13.I found the discussion ____.A boringB boredC boreD boredom14.The teacher told them ____ look at the books first.A notB to notC not toD /15.The doctors are engaged in a study ____ at the cure of disease.A aimingB aimedC to aimD to be aimed16.Our plan is ____ better use of these medicinal herbs.A makeB to makeC makesD making17.I found my hometown completely ____.A changedB changingC to be changedD to change18.____ the truth, that is what I know about it.A To tellB TellingC To be toldD Having told19.____ the letter he left in a hurry.A PostingB Having postedC PostedD Being posted20.All he did was ____ others with their study.A helpingB helpC to be helpingD helps21.This is one of the questions ____ at the meeting last night.A discussesB to discussC discussedD discussing22.It’s a mistake ____ that robots will take the place of man.A thoughtB to thinkC thinkingD thinks23.There are many kinds of building materials, each ____ its special uses.A havingB hasC hadD seems to have24.Ten people were reported ____ in the fire yesterday.A diedB to dieC dyingD to have died25.His health ____ Jim had to leave the army in 1971.A had failedB failedC was failedD failing26.He followed instruction ____ three pills twice a day.A to takingB for takingC to takeD taking27.____ in the fog,we had to spend two hours in the forest.A To lostB LosingC LostD Having lost28.He was pleased ____ to the college.A to be admittedB to admistC admittingD admits29.He ran back to the kitchen, eggs ____ carefully in his arms.A holdB were heldC heldD holding30.It’s a pleas ure for me ____ you English.A to teachB teachingC to teachesD to teaching四、ReadingWouldn't it be great if you could just look up at the sky and read the weather forecast right off it?Well, you can. The forecast is written in clouds. If you can read that writing, you can tell something about the atmosphere. With some practice, you can become a pretty good weather forecaster. Who knows, you might even do as well as meteorologists(气象学家).Meteorologists use much more information than just the appearance of the clouds to make their forecasts. They collect data from all over the world. Then they plug it into powerful, high-speed computers. This does give meteorologists an advantage, because they can track weather patterns as they move from west to east across the country.But you have an advantage, too. You can look at the sky and get your data directly. There's moisture throughout the atmosphere. Most of the time you don't see it, because it's in the form of an invisible gas called water vapor. Sometimes, the temperature of the air gets cold enough to cause the water vapor to change to liquid water. That's called condensation(凝结), and we see it happen all the time (for example, when humid air from theshower hits the cool glass of a mirror). When enough water vapor condenses, droplets（小滴）form in the air. These droplets scatter light and a cloud is visible.Watching clouds over a day or two tells you a lot more than a single cloud about the weather to come. Changes in clouds show changes in the atmosphere. Clouds are classified by their appearance and height. Layered clouds that seem to cover the sky are called status. They mean the air is stable and not changing rapidly with height. Some clouds look like individual balls of cotton called cumulus（积云）, they mark the location of rising air, or thermals(热气流).You should begin to notice patterns. Certain clouds, following each other in order, can signal an approaching storm. But don't take our word for it; see for yourself.1. This passage aims to tell us about how _____.A) to keep an eye on the clouds for weather forecastB) to train as a meteorologistC) to appreciate the beauty of cloudsD) to change liquid water to water vapor2. According to the passage, meteorologists make their weather forecasts _____.A) by looking up at the cloud patternsB) by watching the process of how water vapor formsC) by having experiments all over the worldD) by using power computers to analyze data collected all over the world3. An ordinary person has an advantage over a meteorologist in weather forecast because he can____.A) make use of a high-speed computerB) carry out a complex process of calculationC) watch the sky and forecast the weather directlyD) consult a weather station4.The word "condensation" in this passage most probably means changing to ____.A) a liquid B) a vapor C) a gas D) a solid5. Which of the following statements is true according to the passage?A) You could never do as well as meteorologists in weather forecast.B) Y ou could do as well as meteorologists in weather forecast.C) Never believe in what meteorologists say as you do better than them in weather forecast.D) You could become a meteorologist by watching clouds for a day or two.Passage 2What are the specific traits that will assist executives to climb the ladder of success? Opinions vary widely. Given approximately equal qualifications and circumstances, someclaim the success factor is largely a matter of luck—being in the right place at the right time. Others speak of an almost crazy devotion to work, combined with a degree of pitilessness. One "expert" maintains that it's undoubtedly a matter of how much education your mother had.To make it big, executives must possess four basic skills:First, drive. Business success takes an unusual amount of energy. A successful executive—almost by definition— is a striver（奋力拼搏的人）. He will get tense when he is not striving.Second, people sense. Some say being able to judge people is more important than a high IQ. The skill can be instinctual, but in most cases it is painstakingly learned.Third, communications ability. Different executives make themselves understood in different ways. Some transmit ideas best face to face; others are masters of the telephone call; still others are persuasive writers. One way or another, they all communicate clearly.Fourth, calm under pressure, without which no businessman will get very far.6. Some people claim success requires the following except _____.A) hard work B) a piece of good luckC) support from your parents D) a degree of cruelty7. According to the passage, a high IQ is _____.A) the most important factor which contributes to one’s successB) painstakingly learntC) inbornD) less important than people sense8.The successful executives must _____.A) prefer writing to speaking B) depend on telephonesC) transmit ideas face to face D) express themselves distinctly9.Which of the following statements is not true?A) Not every businessman possesses these four skills.B) When a striver stops his devotion to work, he won’t feel quite at ease.C) These basic skills are not instinctual at all.D) Mother's education has undoubted effect on her child's success.10.The passage mainly tells us about_______________.A) the possibilities of becoming a successful executive.B) some opinions about the success.C) the specific traits for successful executives.D) qualifications and circumstances for climbing the ladder.五、Composition (15分)Say something about advertisements, whether you once followed the ads to buy something,like KFC. Is it necessary for a company to produce a commercial advertisement? You should write at least 150 words to express your own idea.。

本科计算机导论试卷(总6页)--本页仅作为文档封面，使用时请直接删除即可----内页可以根据需求调整合适字体及大小--22郑州大学软件学院《计算机导论》课程2009-2010学年第一学期期末试题（适用专业：09级本科各专业 考试时间：120分钟）合分人： 复查人：一、 选择题：（每题1分，共 40分）（说明：将答案写在试卷后面的答题纸上）1．第一代计算机采用的电子逻辑元件是( B )。

A. 晶体管B. 电子管（真空管）C. 集成电路D. 大规模集成电路 2．负责指挥与控制整台电子计算机系统的是( D )。

A. 输入设备B. 输出设备C. 存储器D. 中央处理器 3．与十进制数1000等值的二进制数是 （ A ）。

A ．00B ．01C ．11D ．114．在计算机数据中，1KB=（ B ）BA ．8 B. 1024 C. 2 D. 10005．计算机中所有信息的存储都采用（ A ）。

A ．二进制B ．八进制C ．十进制D ．十六进制6．下列各组设备中，全部属于输入设备的一组是（ B ）。

A ．键盘、磁盘和打印机B ．键盘、扫描仪和鼠标C ．键盘、鼠标和显示器D ．硬盘、打印机和键盘7．微机中的I/O 设备是指（ A ）。

A. 输入/输出设备B. 显示器C. 控制设备D. 硬盘/软盘设备8．一个完整的计算机系统包括（ D ）。

A. 计算机及其外部设备B. 主机、键盘、显示器C. 系统软件与应用软件D. 硬件系统与软件系统9．ASCII 码是一种字符编码, 使用（ A ）位二进制数表示每个字符。

A. 7B. 16C. l0D. 3210．显示器规格中的1024х768，表示显示器的（ A ）。

A. 分辨率B. 灰色C. 颜色D. 屏幕大小11．为解决某一个特定问题而设计的指令序列称为（ D ）。

A．文档 B．语言 C．系统 D．程序12．计算机操作系统的功能是 ( B ) 。

A．把源程序代码转换成目标代码 B. 控制、管理计算机资源和程序的执行C．完成计算机硬件与软件之间的转换 D. 实现计算机与用户之间的交流13．调制解调器(Modem)的功能是实现（A ）。

中央广播电视大学2024年度第一学期“开放本科”期末考试数学思想与方法试题一、判断题（回答对或错，每题4 分，共20 分）1．数学抽象摆脱了客观事物的物质性质，从中抽取其数与形，因而数学抽象具有无物质性。

()2．一个数学理论体系内的每一个命题都必须给出证明。

( )3．反例在否认一个命题时并不具有特殊的威力。

( )4．不可公度性的发现引发了第二次数学危机。

( )5．最早使用数学模型方法的当数中国古人。

( )二、填空题（每空格3 分，共30 分）6．数学的第一次危机是由于出现了而导致的。

7．传统数学教学只注重的数学知识传授，忽略了数学思想方法的挖掘、整理、提炼。

8．所谓数学模型方法是——9．菱形概念的抽象过程就是把一个新的特性：，加入到平行四边形概念中去，使平行四边形概念得到了强化。

10.在计算机时代，已成为与理论方法、实验方法并列的第三种科学方法。

11．辩驳反例是用否认的一种思维形式。

12．化归方法包含的三个要素是、、。

三、简答题（每题 10 分，共40 分）13．简述类比的含义，数学中常用的类比有哪些？ 14.常量数学应用的局限性是什么？15．简述代数解题方法的基本思想。

16．简述《九章算术》与《几何原本》两大著作的特点。

四、论述题（10 分）17．试用框图表达用特殊化方法解决问题的一般过程并加以说明。

试卷代号：1173中央广播电视大学2023-2023 学年度第一学期“开放本科”期末考试数学思想与方法试题答案及评分标准（供参考）2023 年1 月一、判断题（每题4 分，共20 分）1 ．是2 ．否3 ．否4 ．否5 ．是二、填空题（每空格3 分，共30 分）6．无理数（或√虿）7．形式化8．运用数学模型解决问题的一般数学方法9．组邻边相等10．计算方法11．特殊一般12.化归对象化归目的化归途径三、简答题（每题 10 分，共40 分）13.简述类比的含义，数学中常用的类比有哪些？答：①所谓类比，是指由一类事物所具有的某种属性，推测与其类似的事物也具有这种属性的一种推理方法（5 分）。

A1页线封 密三峡大学试卷班级姓名学号XXXX 年秋季学期《生物化学与分子生物学（二）》课程考试试卷(A 卷)参考答案及评分标准注意：1、本试卷共 4页；2、考试时间: 110 分钟；3、姓名、学号必须写在指定地方；一、名词解释 (每小题 2 分，共20 分)1. 外显子(exon)：是真核生物基因的一部分，它在剪接(Splicing)后仍会被保存下来，并可在蛋白质生物合成过程中被表达为蛋白质。

2.颠换：嘌呤被嘧啶替代或者相反。

即：A-T 变成了T-A 或C-G 。

3.基因：基因是编码RNA 的DNA 序列，编码蛋白质的基因通过RNA 翻译产生蛋白质。

4. DNA 的C 值：单倍体基因组的DNA 总量是活生物的一个重要特征，我们称之为C 值（C-value)。

5.顺式作用元件：真核生物的转录上游调控序列统称为顺式作用元件，主要有TATA 盒、CG 盒、上游活化序列(酵母细胞)、增强子等。

6.反式作用因子：和顺式作用元件结合的蛋白质都有调控转录的作用,统称为反式作用因子。

7.SD 序列： Shine 及Dalgarno 等发现几乎所有原核生物mRNA 上都有一个5‘-AGGAGGU-3’序列，这个富含嘌呤序列与30S 亚基16SrRNA3‘端的富含嘧啶区序列5'-ACCUCCU-3'相互补，称之为SD 序列。

8.核酶（ribozyme ）:由核糖核酸和酶组成，其本质为RNA 或以RNA 为主含有蛋白质辅基的一类具有催化功能的物质，它与普通的酶有所区别：一般的酶是蛋白质，而核酶的主要功能成分为RNA ；有的核酶既是催化剂又是底物，随着反应的进行，自身也消失了。

9.操纵子（Operon ）：是基因表达的协调单位，由启动子、操纵基因及其所控制的一组功能上相关的结构基因所组成。

操纵基因受调节基因产物的控制。

10.可诱导调节：指一些基因在特殊的代谢物或化合物的作用下，由原来关闭的状态转变为工作状态，即在某些物质的诱导下使基因活化。