综合练习三
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《大学物理》综合练习(三)——气体动理论与热力学班级学号: 姓 名: 日 期: 一、选择题(把正确答案的序号填入括号内)1.若气体分子的速率分布曲线如图所示, 其中a 、b 两部分面积相等,则图中0v 为 (A)最概然速率p v v =0; (B)平均速率v v =0; (C)方均根速率20v v =;(D)速率大于和小于0v 的分子数各占一半。
2.一定质量的理想气体,从状态),(V p A 然速率之比Ap Bp v v /为(A)2; (B)3; (C)1; (D)π/2。
[ ]3.如图所示的两条曲线分别表示在相同温度下,氢气和氧气分子的速率分布曲线,则氧分子和氢分子最概然速率之比22/pH po v v 为 (A)2/1; (B)4/1; (C)8/1; (D)1。
[ ]4.容器中装有温度为273K 、压强为1atm 的氧气,假设容器的绝对温度加倍,因此分子被分离为原子,试问氧原子的方均根速率为氧分子的方均根速率的多少倍? (A)2; (B)1; (C)2/1; (D)2。
[ ]5.一容器内盛有一摩尔的氢气和一摩尔的氦气,其混合后的稳恒温度为127℃,则混合气体的算术平均速率为 (A))12(54+ππR; (B))12(5200+πR;f (v )p o 2 p H 22(C)πR15200; (D) π310400R。
[ ]6.气体的温度升高时,麦克斯韦速率分布函数曲线的变化是 (A)曲线下的面积增大,最概然速率增大; (B)曲线下的面积不变,最概然速率增大; (C)曲线下的面积减小,最概然速率增大; (D)曲线下的面积不变,最概然速率减小。
[ ]7.一容器装着一定量的某种气体,下述几种说法哪一种对? (A) 容器内各部分压强相等,这状态一定是平衡态; (B) 容器内各部分温度相等,这状态一定是平衡态;(C) 容器内各部分压强相等,且各部分密度也相同,这状态一定是平衡态。
[ ]8.图中表示在不同条件下理想气体的体积密度ρ随压强变化的五种曲线,试问哪个图准确地描述了等温条件下一定质量的气体的密度随压强的变化?[ ]9.理想气体作一循环过程acba ,其中ba 为等压过程,acb 为半圆弧, a c p p 2=。
《思想道德修养与法律基础》综合练习三一、单项选择题(共30题,每题1分,共计30分。
1、大学生道德观形成的内在途径是( D )A、富有成效的道德教育B、社会道德舆论的正确引导C、建立合理的社会奖罚机制D、加强自身修养2、社会主义核心价值体系的理论基础是( A )A、坚持马克思主义指导思想B、确立中国特色社会主义共同理想C、弘扬以爱国主义为核心的民族精神和以改革创新为核心的时代精神D、树立社会主义荣辱观。
3、无产阶级革命家陶铸在《崇高的理想》一文中赞扬我国历史上的民族英雄、人民英雄、发明家和科学家的时候,指出:“所有这些人都是具有伟大理想并坚决为他们的伟大理想而斗争的人……他们为了自己的伟大理想,有些人家可以不要,有些人官可以不做,有些人生命可以抛弃,有些人真正做到了富贵不能淫,贫贱不能移,威武不能屈的地步。
”可见,崇高理想是( D )A、人们的主观意志和想当然B、不需客观根据的随心所欲的想象C、不必通过艰苦努力就能展现出来的现实D、激励人们战胜邪恶和腐朽,向着既定目标奋斗进取的力量源泉。
4、把理想转换为现实的根本途径是( B )A、认真学习科学理论B、积极投身社会实践C、牢固确立科学信念D、大胆畅想美好未来5、中华民族精神的核心是 ( B )A、团结统一B、爱国主义C、勤劳勇敢D、自强不息6、被称为国家和民族“胎记”和精神基因的是:( A )A、文化传统B、风俗习惯C、社会环境D、自然条件7、经济全球化意味着:( D )A、政治一体化B、文化一体化C、价值观一体化D、商品流动全球化8、在“富贵不能淫、贫贱不能移、威武不能屈”的坚贞刚毅品质中主要是( D )的民族精神A、团结统一精神B、爱好和平精神C、勤劳勇敢精神D、自强不息精神9、时代精神的核心是( A )A、改革创新精神B、不畏艰险精神C、英勇无畏精神D、敢为人先精神10、人生观的核心是 ( B )A、人生价值B、人生目的C、人生态度D、人生信仰11、人生价值的本质是( D )A、个人在社会关系中的存在B、人的社会性需要的满足C、社会对个人的尊重和满足D、个人对社会的责任和贡献12、人生态度是指人们通过生活实践所形成的对人生问题的一种稳定的( C )和基本意图。
Internet综合练习题三一、填空题1. IP 地址202.135.111.77 对应的自然分类网段的广播地址为________________。
2. IP 地址125.1.1.1 对应的自然分类网段的广播地址为________________。
3. IP 地址172.15.1.1 对应的自然分类网段包含的可用主机地址数为__________。
4. IP 地址165.110.20.67 对应的自然分类网段包含的可用主机地址数为__________。
5. IP 地址112.1.1.1 对应的自然分类网段的网络地址为________________。
6. IP 地址192.48.117.22 对应的自然分类网段的网络地址为________________。
7. 对一个B 类网段进行子网划分,如果子网掩码是19 位,那么每个子网能够容纳的最大主机数为________________。
8. 对一个B 类网段进行子网划分,如果子网掩码是19 位,那么最多能够划分的子网数为________________。
9. 对一个B 类网段进行子网划分,如果子网掩码是22 位,那么每个子网能够容纳的最大主机数为________________。
10. 对一个C 类网段进行子网划分,如果子网掩码是28 位,那么每个子网能够容纳的最大主机数为________________。
11. 某公司网络管理员需要设置一个子网掩码将其负责的C 类网络211.110.10.0 划分为12 个子网,要求每个子网包含尽可能多的主机,则他应采用________________位的子网掩码。
13. 要求设置一个子网掩码将B 类网络172.16.0.0 划分成尽可能多的子网,每个子网要求容纳15 台主机,则子网掩码应为________________。
14. 要求设置一个子网掩码将一个B 类网络172.16.0.0 划分成尽可能多的子网,每个子网要求容纳500 台主机,则子网掩码应为________________。
九年级英语综合练习题及答案(三)第Ⅰ部分听力部分(20分)一、根据所听的句子选择正确的答语1、A. No, do it yourself B. Ok! How much do you need? C. Yes, you are right2、A. Go away B. I’m hungry C. Sure3、A. Thank you very much B. It doesn’t matter C. Ok! I’ll be glad to4、A. You are welcome B. Yes, sure C. I’m fine. Thank you5、A. Thank you B. That’s all right C. Congratulations!二、根据录音中的对话及问题,选择正确的答案6.A. They are in the bookstore B. There are on the bus C. They are in the station7. A. Vegetables B. Fruit C. Food8. A. She can’t use a computer now B. She is good at using a computerC. She learns it slowly9. A. A doctor B. A worker C. A teacher10. A. He looks for the fourth floor B. He wants to meet his friendsC. He wants to have a rest听第一段对话,回答第11、12小题11、A. Three B. Seven C. Four12、A. In a quiet corner B. By the window C. Near the door听第二段对话,回答第13-15小题13、A. She has a headache B. Her back hurts C. Her left leg is broken14、A. This morning B The day before yesterday C. Yesterday15、A. To eat some food she likes B. To buy a warm coat C. To have a good rest三、听短文,根据短文内容回答所提的问题16、A. Because someone had bought it B. Because the woman was not richC. Because he thought the woman couldn’t pay for it17、A. Yes, she did B. No, she didn’t C. We don’t know18、A. The same dress, very beautiful B. Different dress, very beautifulC. The same dress, common19、A. Happy B. Tired C. Angry20、A. The woman didn’t buy a dress.B. The woman bought the most beautiful dress.C.The woman bought the dress she had seen the day before第二部分:选择题部分(80分)一、单项选择题(20分)21. In the United States, Father’s Day falls on _____ third Sunday in _____ June.A. the; 不填B. the; aC. 不填; theD. a; 不填22. The restaurant is so popular here. Look, there are so many _____ here.A. foodB. dishC. peopleD. waiter23. ---Could you lend me your dictionary? I left _______ at home.---Certainly.A. itB. yoursC. oneD. mine24. —is your sister, Jim?—She's a journalist from CCTV.A. WhatB. HowC. WhereD. Who25.-- Could you tell me how to get to Xuzhou Railway Station, please?-- ______.A. No, I couldn’tB. Don’t ask meC. Thank you all the sameD. Certainly. You can take the No. 1 bus26. The spaceship will go around the earth in 2005 will be calledShenzhou VII.A. whichB. whoC. whomD. what27. Don't make so much noise. The students an English class.A. are havingB. haveC. hadD. were having28. _______ all the students in his class, Xiao Ming writes_______.A. Of, most carefullyB. In, the most carefullyC. Of , very carefullyD. In, much more carefully29. — Shall we go to Monkey Island for a picnic tomorrow?— If it fine.A. isB. wasC. is going to beD. will be30. He hardly hurt himself in the accident,________?A. doesn’t heB. didn’t heC. did heD. does he31. — Will you stay here for supper?— Sorry, I I’ll have to meet my uncle at the station.A. mustn'tB. can'tC. needn'tD. don't32. — Could you tell me ?—You mean yesterday?A. how the passengers are savedB. how are the passengers savedC. how the passengers were savedD. how were the passengers saved33. — What did she forget when she left for home?—the book.A. TakingB. TookC. TakeD. To take34. There was a fire in the street last night, but the firemen _______within twentyminutes.A. took it outB. brought it outC. worked it outD. put it out35. — How much meat do you want?—.A. Sorry, there isn't anyB. I can't give you anyC. Half a kilo, pleaseD. Twelve yuan a kilo36、Lucy said that she had never heard _________ music before.A. such a beautiful piece ofB. so a piece of beautifulC. so beautiful aD. such a beautiful37、Our monitor takes more exercise every day, for he believes __________ he does,__________ he’ll be.A. the less; the strongerB. the more, the thinnerC. the more; the strongerD. more; stronger38、Who do you think you’d like __________ with you, a boy or a girl?A. to let to goB. letting to goC. to let goD. let go39、In our school library there __________ a number of books on science and thenumber of them __________ growing larger and larger.A. is; areB. are; isC. has; isD. have; are40、Look at the front tall please._______ means that this way is for a disabled(残疾的)person to go through.二、完型填空(共10小题,每小题1分)Millie stopped 41 a shoe-shop and looked in the window. For some time, she looked 42 at a pair of boots on show. “They’re just what I’ve been43 .”she thought. The boots were unpriced(未标价), so Millie decided to askhow much they were and she went in. “I’d like to buy boots like 44 you have in the window.” She asked the shop-keeper“Could you tell me how much they are, please?”45 the price(价格) was neither too high nor too low, Millie decided to trya pair on. The shop-keeper asked her to 46 and brought her a pair. While shewas helping Millie to put them on, she 47 looking at Millie’s stockings(袜子).Millie was wearing a pair of stockings made of fine white silk.“48 my asking,”the shop-keeper said at last, “but where did you get these stockings?We’ve been trying to buy stockings like these for some time. They’re the very49 fashion(款式) and they are in great need.”“They’re beautiful, aren’t they? ”Millie said, “ 50 was given them by my grandmother.”41. A. inside B. outside C. near D. beside42. A. straight B. strangely C. in surprise D. worriedly43. A. thinking of B. talking about C. looking for D. finding out44. A. it B. them C. one D. the ones45. A. As B. When C. If D. Though46. A. stand up B. wait for C. sit down D. have a rest47. A. went on B. kept C. stopped D. finished48. A. Forget B. Remember C. Keep D. Excuse49. A. latest B. coolest C. finest D. oldest50. A. Mine B. It C. She D. IⅦ、阅读理解(共15小题,每小题2分)AYou have often looked into a mirror, of course. But you haven’t seen the real picture of your face yet. And why couldn’t you see it? When you look into a mirror, you don’t see your face as other people see it. You see a reversed picture. If you close your left eye, your picture closes its right eye. If you touch your right ear with your right hand, your picture touches its left ear with its left hand.If you have two small mirrors, you can see your faces as your friends see it. You hold the two mirrors at right angles(角度) to each other and look into them. Aftersome practice you will be able to see the real picture of your face.Now close your left eye and your picture closes its left eye too. Touch your right ear with your right hand and your picture touches its right ear with its right hand! This happens because each mirror reflected(反射) the picture in the other mirror. So you see a reversed picture of a reversed picture, which, of course, is the same as the real picture.51. When you look into a mirror, you couldn’t see ______.A. the picture of yourselfB. your face as others see itC. the picture of your faceD. the picture of your eyes52. What does the word reversed mean in this passage?A. 暂存的B. 相反的C. 模拟的D. 虚拟的53. According to the first paragraph of the passage, if you close your left eye, yourpicture in the mirror ______.A. closes its right eyeB. closes its left eyeC. touches its right earD. touches its left ear54. Which of the following pictures is right according to the second paragraph of thepassage?M1 M2 M1 P M1M2P M2 M2 PA B C DM = mirror P = person55. We can learn something about ______ from the passage.A. body languageB. Physical Education(体育)C. optical illusions(视错觉)D. television inventionBDo you know what couch-potato means? Well, in America, the word is now often used. The American couch-potato becomes maybe even a part of the American tradition! You see, in America, many people often spend their free time sitting on a couch(沙发) watching TV. As there are many channels to choose, the TV can be quite interesting and very addictive(上瘾的). One may sit and watch TV for hour and hour without stop! Well, these people who do nothing all day except watching TV are called couch-potatoes.In America, when one watches TV, he is most often sitting on a couch. While watching TV, most of these people look so frozen that they almost look dead! Everyone is sitting still(静止的) with eyes looking right into the same black box. Also because these people are addictive to TV, they don’t take exercise and usually get very fat. So in many ways, these people look like real potatoes! Well, because they look so still and fat, and watch TV on a couch, they are all called couch-potatoes. Now you know what couch-potato means. The next time if you see someone watching TV too long, just say, "What a couch-potato!"56. The word “couch-potato” is often used in _______.A. ChinaB. AmericaC. JapanD. France57. If a person is called a couch-potato, he or she _______.A. likes sitting on a couch watching TVB. does nothing all dayC. must be very fatD. only watches TV and eats potatoes58. Why does a couch-potato look like a real potato? Because he or she _______.A. almost never moves while watching TV and gets very fatB. is fat and dying and can not take exerciseC. likes eating potatoes on a couch while watching TVD. is frozen in front of the black box59. The passage mainly tells us _______.A. how to watch TVB. why couch-potatoes are very fat.C. what couch-potato meansD. where the new word is used60. Which of the following should be the writer’s suggestion(建议)?A. Take exercise.B. Never watch TV.C. Don’t sit on a couch.D. Don’t watch TV too much.CHenry was a carpenter(木匠)of our village. Once I asked him to make a dining tablefor my wife. He made it just the right size to fill the space between the two windows. WhenI arrived home that evening, Henry was drinking a cup of tea and writing out his bill for his work.。
国家开放⼤学电⼤《财务管理》综合练习题三考试卷模拟考试题《电⼤《财务管理》综合练习题三》考试时间:120分钟考试总分:100分遵守考场纪律,维护知识尊严,杜绝违纪⾏为,确保考试结果公正。
1、由于优先股股利是税后⽀付的,因此,相对于债务融资⽽⾔,优先股融资并不具有财务杠杆效应。
()()2、如果项⽬净现值⼩于,即表明该项⽬的预期利润⼩于零。
()()3、因为直接筹资的⼿续较为复杂,筹资效率较低,筹资费⽤较⾼;⽽间接筹资⼿续⽐较简便,过程⽐较简单,筹资效率较⾼,筹资费⽤较低,所以间接筹资应是企业⾸选的筹资类型。
()()4、流动⽐率、速动⽐率及现⾦⽐率是⽤于分析企业短期偿债能⼒的指标,这三项指标在排序逻辑上⼀个⽐⼀个谨慎,因此,其指标值—个⽐⼀个⼩。
()()姓名:________________ 班级:________________ 学号:________________--------------------密----------------------------------封 ----------------------------------------------线-------------------------5、企业的应收账款周转率越⼤,说明发⽣坏账损失的可能性越⼤。
()()6、在现⾦需要总量既定的前提下,现⾦持有量越多,则现⾦持有成本越⾼、现⾦转换成本也相应越⾼。
()()7、⼀般认为,如果某项⽬的预计净现值为负数,则并不⼀定表明该项⽬的预期利润额也为负。
()()8、在评价投资项⽬的财务可⾏性时,如果投资回收期或会计收益率的评价结论与净现值指标的评价结论发⽣⽭盾,应当以净现值指标的结论为准。
()()9、融资租⼊的固定资产视为企业⾃有固定资产管理,因此,这种筹资⽅式必然影响企业的资本结构。
()()10、如果某证券的风险系数为 1,则可以肯定该证券的风险回报必⾼于市场平均回报。
()()11、某企业以“ 2/10,n/40”的信⽤条件购⼊原料—批,若企业延⾄第 30天付款,则可计算求得,其放弃现⾦折扣的机会成本为 36.73%。
《C综合练习 3 --- 函数与指针》一、选择题1. 程序中调用了库函数strcmp,必须包含头文件()。
若是调用库函数gets呢?A、math.hB、string.hC、ctype.hD、stdio.h2.数组声明为“int y[4][3];”,表达式“*(y+2)+2-*y”的值为()。
A. 10B. 20C. 16D. 83.指针变量p1、p2类型相同,要使p1、p2指向同一变量,哪一个语句是正确的( )。
A、p2=*&p1;B、p2=**p1;C、p2=&p1;D、p2=*p1;4.数组定义为“int a[4][5];”,下列哪一个引用是错误的( )。
A、*aB、*(*(a+2)+3)C、&a[2][3]D、++a5.表达式“c=*p++”的执行过程是()。
A、复制*p的值给c后再执行p++B、复制*p的值给c后再执行*p++C、复制p的值给c后再执行p++D、执行p++后将*p的值复制给c6.函数strcmp("Int","int"))的返回值为。
A、0B、-32C、"intInt"D、"Intint"7.函数f定义如下,执行语句“sum=f(5)+f(3);”后,sum的值应为。
int f(int m){ static int i=0; int s=0;for(; i<=m; i++) s+=i;return s;}A、21B、16C、15D、88.下列语句定义x为指向int类型变量a的指针,其中哪一个是正确的。
A、int a,*x=a;B、int a,*x=&a;C、int *x=&a,a;D、int a,x=a; 9.声明语句为“int a[3][4];”,下列表达式中与数组元素a[2][1]等价的是。
A、*(a[2]+1)B、a[9]C、*(a[1]+2)D、*(*(a+2))+1 10.对于以下递归函数f,调用f (2) 的返回值是。
Part I Text ExercisesVI.Passage 1: 1. A 2. C 3. D 4. C 5. CPassage 2: 1. C 2.B 3.A 4. C 5. AII.1. A 2. D 3. D 4 C 5. C 6. C 7. A 8. D 9. B 10. B 11. A 12. A 13. D14. C 15. C 16. C 17. C 18.B 19. B 20. A21. robberies 22. Consciousness 23. leaves 24. felt 25. will be finished26. recovered 27. curious 28. combination 29. was knocked 30. praisedIII.1. A 2. D 3. C 4. A 5. D 6. B 7. D 8. B 9. A 10. C Unit 2 Book III.VI.Passage 1: 1. C 2. D 3. A 4. B 5. CPassage 2: 1. C 2. D 3. B 4.B 5. AVII1. persistence 2. high-quality 3. impossible 4. see beyond 5. one’s attitudeII. 1. D 2. A 3. A 4. B 5. D 6. C 7. D 8. C 9. B 10. B 11. A 12. C 13. B14. B 15. A 16. C 17. A 18.D 19. C 20. B21. encourage 22. intensified 23. have been talking 24. have been forced25. wouldn’t have printed 26. prestigious 27. Global 28. imagination29. prestigious 30. experimenting III. 1. A 2. C 3. D 4. A 5. B6. letter of shipment7. Tokyo8.two 9. in good order 10. futureordersUnit 3V. Passage 1: 1. D 2. C 3.A4.C5. BPassage 2:1. C 2. B 3.D 4. A 5. BVI.1. being laughed at2. anaverage child 3. develop herself-confidence4. participate in/ take part in5.believe in herselfII. 1. C 2.C 3. B 4. A 5. D6. D7. A8. B9. B 10. A11. D 12. A 13. C14. B 15. A 16. D 17. A 18.B 19.C 20. D21. has not woken/ waked 22.would stay 23. couldn’t h aveovercome24. energetic 25. supervision26. approval 27. to be put 28.to save29. innovations 30. hostileUnit 4 V. Passage 1: 1. D 2.C3. A4. B5. DPassage 2: 1. A 2.D 3. B4.B5. DVI. 1. was paralyzed 2. braininjury 3. local social worker 4.give up 5. a debtPart II Exercises for PRETCOSection A 1. B 2.B 3. C4.A5. DSection B 6. C 7. D 8.C 9. A10. D11. five (years old) 12.seventeen or eighteen 13.bytax money14. whose parents live 15. 50percentII. 1. B 2. A 3. C 4. D 5. D6. A7. B8. C9. A 10. B11. D 12. C 13. B14. A 15. C 16. D 17. A 18.A 19.B 20. C21. financial 22. awareness 23.is missing 24. disabilities 25.will have worked26. corruption 27. survived28. had been cut 29. beassigned 30. being admittedIII.1. A 2. C 3. B 4.B 5. D6. Chinese and foreignprofessionals 7. Spoken andwritten8. (the) foreign studentdormitories 9. two (requirements)10. field trips1. A2. B3.B4. D5. C6. B7. D8. D9. C 10. CPat IV Cloze1. to2. pay3. without4.with 5. before 6. deserve7. sound 8. from 9. how 10.byUnit 5ⅥPassage 1: ADDCA Passage2:DBBCDⅦ1.have emotionally connected 2.lessthan half 3.be in love 4.happierthan 5.similiar goalPartⅡ1-20.CDABC ADBCD ADCBDABCAB Ⅲ1-5.CADAB6-10.HDGAE1)尊敬的XX 先生/女士:我公司在9月4日的会议上,已经决定把我公司的名称改为CNMIEC 李氏公司。
综合练习(三)一. 填空1. 70050000读作( ),改写成以万作单位的数是( )。
2. 40米=( )厘米3500平方分米=( )平方米 3. 2001年有( )日 2004年2月有( )日4. 小明早上7:30到校,下午4:10放学,他在学校一天的时间是( )小时( )分。
5. 20:00是晚上( )时,下午3时50分用24时计时法表示是( )时( )分。
6. 55000÷400的商是( ),余数是( )。
7. 在一个乘法算式中,积是乘数的105倍,被乘数是乘数的5倍,乘数是( ),积是( )。
8. 请你通过测量,计算出下图中正方形的面积是( ),小长方形的周长是( )。
(测量时取整厘米数)二. 判断正误,对的画“√”,错的画“×” 1. 2542541⨯÷⨯=( )2. 一个三位数除以25,正好除尽没有余数,这个三位数一定是商的25倍。
( )3. 630630-==+X X ( )4. ()()24061206240120⨯÷÷=÷( )三. 选择正确答案的序号填在括号里。
1. 360比X 少90,求X。
可列式为( )A. X -=90360B. 90360+=XC. X +=90360D. 90360-=X 2. 和10亿相差最小的数是( )A. 99900000B. 990000000C. 998000000D. 1010000000四. 求未知数X。
1. X -=892892. 7632500+=X五. 用简便方法计算1. 444723156277+++2. 743246154--3. 3129⨯六. 脱式计算下列各题1. 3009124657+⨯÷2. 10824267813⨯-÷3.()24074167229+÷⨯4.()()1468106886400120-⨯÷5. ()3062052730125⨯-÷七. 列式计算1. 4320减去3926,加上236,再乘以72,积是多少?2. 5040除以36的商,加上298与185的差,和是多少?八. 应用题:1. 5千克绿豆可以生产豆芽40千克,照这样计算,80千克绿豆可以生产豆芽多少千克?2. 筑路队铺一段铁路,原计划15天铺完,每天需铺320米,实际每天铺400米,多少天可以铺完?比原计划提前几天完成?3. 同学们参加植树活动,四年级共135人,平均每人植树4棵。
数据库综合练习三习题一1.现有一个局部应用,包括两个实体:“出版社”和“作者”,这两个实体是多对多的联系,请设计适当的属性,画出E-R图,再将其转换为关系模型(包括关系名、属性名、码和完整性约束条件)。
2.请设计一个图书馆数据库,此数据库中对每个借阅者保存的记录包括:读者号,姓名,地址,性别,年龄,单位。
对每本书保存有:书号,书名,作者,出版社。
对每本被借出的书保存有读者号、借出日期和应还日期。
要求:给出该图书馆数据库的E-R图,再将其转换为关系模型。
3.图4-1是某个教务管理数据库的E-R图,请把它们转换为关系模型(图中关系、属性和联系的含义,已在它旁边用汉字标出)。
图4-1教学管理数据库4.图4-2是一个销售业务管理的E-R图,请把它转换成关系模型。
5.设有一家百货商店,已知信息有:l)每个职工的数据是职工号、姓名、地址和他所在的商品部。
2)每一商品部的数据有:它的职工,经理和它经销的商品。
3)每种经销的商品数有:商品名、生产厂家、价格、型号(厂家定的)和内部商品代号(商店规定的)。
4)关于每个生产厂家的数据有:厂名、地址、向商店提供的商品价格。
请设计该百货商店的概念模型,再将概念模型转换为关系模型。
注意某些信息可用属性表示,其他信息可用联系表示。
6.下列有关E-R模型向关系模型转换的叙述中。
不正确的是_______。
A. 一个实体类型转换为一个关系模式B. 一个1:1 联系可以转换为一个独立的关系模式,也可以与联系的任意一端实体所对应的关系模式合并C. 一个1:n 联系可以转换为一个独立的关系模式,也可以与联系的任意一端实体所对应的关系模式合并D. 一个m:n 联系转换为一个关系模式习题一解答1.答:转换后的关系模型如图6所示。
出版社(出版社名,地址,邮政编码);作者(姓名,性别,年龄,证件号码,单位);出版(出版社名,作者姓名,出书数量,联系方式)。
图62.答:该图书馆数据库的E-R图如图7图7其中:读者:读者号,姓名,地址,性别,年龄,单位;图书.书号,书名,作者,出版社。
绝密★启用前2023年下半年教师资格考试(中学)综合素质科目练习题(三)(含答案)一、(本大题共29小题,每小题2分,共58分)(共29题,每题2分,共58分)1、董老师上游戏课时,小明总爱举手,但答题经常出错,小强不爱举手,但老师点名提问却总能答对。
老师下列做法中,最合适的是()。
A、批评小明总出错,表扬小强爱思考B、表扬小明爱举手,批评小强不发言C、批评小明总出错,批评小强不发言D、激发小明勤思考,鼓励小强多举手2、教师劳动手段的特殊性,决定了教师劳动具有()的特点。
A、创造性B、长期性C、复杂性D、示范性3、班主任孙老师经常对学生说:“知识改变命运,分数才是硬道理。
”他自己出钱设立了“班主任基金”,用于奖励每学期末前三名的学生,孙老师的做法()oA、正确,物质奖励具有良好的激励作用B、不正确,考试成绩不能衡量学生的综合素质C、正确,考试成绩是衡量学生的重要依据D、不正确,考试成绩不是评价学生的唯一指标4、于老师总是根据学生不同的学习基础设计课堂提问和练习。
这表明于老师OA、遵循教学规律,实现学生全面发展B、关注学生差异,促进全体学生发展C、注重分层教学,促进学生均衡发展D、注重循序渐进,实现师生教学相长5、地方人民政府对违反《教师法》规定,拖欠教师工资或者侵犯教师其他合法权益的,应当()。
A、责令其限期改正B、给予行政处分C、依法追究刑事责任D、对其处以罚款并责令改正6、某县级政府为了提高本县的中考成绩,将辖区内两所初中列为重点学校,并给予政府倾斜。
该县级政府的做法()A、合法,县级政府有权自主管理B、合法,有助于校际教育质量竞争C、不合法,不能设置重点校和非重点校D、不合法,应该平均分配各类教育资料7、某教师积极参加学校工会活动,并对学校的改革发展建言献策。
该教师行使的权利是()A、教育教学权B、控告检举权C、民主管理权D、培训进修权8、被学校行政处分后,张老师认为学校对自己很不公平。
依据《中华人民共和国教师法》,张老师可以()oA、向当地党委提出申诉B、向当地纪检部门提出申诉C、向当地法院提起诉讼D、向当地教育行政部门提出申诉9、某初级中学在初一的六个班中设了一个重点班。
II.完型填空Did you hear music at any of these places? Today most stores and restaurants play music. You might 21 hear music in an office or on a farm.Scientists believe that music changes the 22 people behave. According to some scientists, the sound of Western classical music makes people 23 themselves richer. When a restaurant plays classical music, people spend 24 money on food and drinks. When the restaurant plays 25 music, people spend less money. With no music, people spend even less.Scientists also believe that loud, fast music makes people eat faster. In fact, people 26 their food faster when the music gets faster. Some restaurants play fast music during their 27 hours. This gets people to eat faster and leave quickly, so restaurants can serve more people and make more money.Some scientists think music makes people think and learn better. They say that music 28 students to be more active. It is true that people learn better when they are 29 . And listening to music can help them relax.The next time you hear music somewhere, be 30 . It might change the way you do things.21. A. already B. even C. hardly D. never22. A. way B. time C. idea D. place23. A. become B. get C. feel D. look24. A. much B. more C. little D. less25 A. pop B. modern C. light D. country26. A. cook B. order C. eat D. make27. A. free B. happy C. busy D. sad28. A. makes B. asks C. allows D. helps29. A. excited B. interested C. confident D. relaxed30. A. careful B. quiet C. quick D. HappyIII.阅读理解AThese days, people show their thanks, or wishes and hopes, or invitations, or something else inA. LindaB. Mrs BellC. Mr LiuD. Mike32. Tim expresses his in his card.A. wishesB. thanksC. hopesD. invitations33. Tina is going to next Monday.A. take examsB. have a birthday partyC. go on a vacationD. take care of the cat34. Linda’s good friends are going to her birthday party .A. this SundayB. next MondayC. on September 10thD. on May 18th35. has a cat.A. TinaB. Wang LiC. MikeD. TimBHow to have fun in Chicago without spending a lot of money?SightseeingThe Art Institute of Chicago has a fine collection of photos and paintings. The ticket is $10.00. But on Tuesdays you’ll get in free.The Sears Tower is the world’s third tallest building. By going to the 103rd floor, you can get a great view of the whole city! All for only $8.50.Free showThere are free concerts in Grant Park in summer. They are held from Wednesday to Saturday at 7:00 pm.Attend the taping of a TV show for free. The Oprah Winfrey Show and the Jenny Jones Show both offer tourists free tickets. For the Oprah Winfrey Show you’ll have to book tickets at least a month before.Places to stayYou can get a hotel for $100 to $300 a day. However, you can get a room in the dormitory at Roosevelt University for $215 for a whole week! But you have to stay for 30 days to get this great rate(价格).36. This passage tells us .A. Chicago is a big and beautiful cityB. where we can see fine photos and paintingsC. how to make a cheap trip in ChicagoD. there are many free concerts in Chicago37. It will cost you if you visit the Art Institute instead of the Sears Tower on Sundays.A. moreB. lessC. a littleD. nothing38. You may go to if you like to get a great view of the whole city.A. the Art InstituteB. the Sears TowerC. Roosevelt UniversityD. Grant Park39. You have to spend at least a month to stay in a dormitory room at RooseveltUniversity at a good price.A. $100B. $300C. $215D. $86040. According to the passage, which of the following is NOT true?A. It is free to go to the Art Institute on Tuesdays.B. Free Grant Park concerts are held four nights a week in summer.C. The Sears Tower is the world’s third tallest building.D. You can get tickets for the Oprah Winfrey Show as soon as you arrive.CSometimes the most difficult thing about feelings is sharing them with others. Sharing your feelings helps you when you feel good or not.Before you can share them with anyone, you have to figure out(弄明白)your feelings. When you’re trying to figure out your feelings, it might help you remember something that happened and think about how it makes y ou feel. Then you can say, “I feel sad when my friend doesn’t play with me” or “ I feel angry when my brother always wins at baseball.” This can help you figure out your own feelings. It also gives the person you’re talking with more information about what makes you sad or angry.It can be really hard to tell anyone that you’re feeling sad, worried, or angry. But if you keep feelings locked inside, it can even make you feel sick!But if you talk with someone like your mom or dad, you will always start to feel better. Now you’re not all alone with your problems or worries. Your mom and dad want to know if you have problems because they love you. What if a kid doesn’t want to talk with mom or dad? Then find another trustworthy(值得信赖的)adult , like a relative or a counselor(顾问)at school.If you think you’ll have trouble saying what’s on your mind, write it down on a piece of paper. A kid doesn’t have to share every feeling he or she has, but it is important to share feelings when a kid needs help. You don’t have to solve every problem on your own. Sometimes you need help. Talking with someone about your feelings can be the first step.41. What does this passage mainly talk about?A. How to keep healthy in mind.B. how to deal with feelings.C. How to talk with others.D. How to keep yourself happy.42. Whom can you talk with when you feel bad?A. Your parents.B. Your aunt.C. A counselor.D. All the above.43. What is the best way to deal with feelings?A. You should keep feelings locked inside.B. You should share your feelings with somebody who cares for you.C. Whenever you feel bad, write your feelings down.D. You can talk to anybody about all your feelings.44. What does the writer advise us to do before sharing our feelings with others?A. To try to forget all bad feelings first.B. To find a suitable person to talk with.C. To think about our feelings clearly.D. To write them down on a piece of paper.45. Which of the following is NOT true according to this passage?A. It is hard to talk with others about our feelings.B. It is important to share feelings when a kid needs help.C. Parents or counselors should help kids with bad feelings.D. Kids should deal with their bad feelings, because they understand themselves best.DThis is a story about Wealth, Success and Love.One day, a woman saw three old men sitting in her front yard. She thought they must be hungry. “Please come in and have something to eat,” the woman said.“Is your husband at home?” they asked.“No,”she said. “He’s out.”“Then we can’t come in,” they said.When her husband came home, she told him about that and he asked her to go and invite them in. The woman went out and invited the men in. “We don’t go into a house together,” one of the old men said. “This is Wealth. This is Success and I am Love. Now whom do you want to invite to your house?”The woman told her husband what they said. Her husband said, “Let us invite Wealth.” His wife said, “My dear, why don’t we invite Success?” Their daughter said, “What about inviting Love? Our home will be full of Love!” The husband thought again and again. He thought his daughter was right and agreed with her idea.The woman went out and asked the three old men, “Which one of you is Love? Please come in.” Love came into the house. The other two also followed him. The lady asked Wealth and Success, “I only invited Love, why are you coming in?” The old men answered together, “Where there is Love, there are also Wealth and Success!”46题完成句子;47-48题简略回答问题;49题找出全文的主题句;50题翻译成汉语。