2008-2009学年第一学期B
2008-2009学年度第一学期期末考试九年级数学试卷(B1)

2008-2009学年度第一学期期末考试九年级数学试卷(B)第一卷一、选择题(每小题4分,共40分)1、等腰三角形的一个内角为120°,则这个等腰三角形的底角等于( )A 、20°B 、30°C 、45°D 、60° 2、下列方程中,是一元二次方程的是( )A 、13+xB 、02=+y xC 、012=+xD 、32=+y x 3、一元二次方程x x 32=的根为( )A 、3=xB 、01=x ,32=xC 、3-=xD 、31-=x ,02=x 4、菱形具有而平行四边形不一定具有的性质是( )A 、对角相等B 、对边相等C 、邻边相等D 、对边平行 5、顺次连结等腰梯形各边中点所得的四边形是( )A 、平行四边形B 、菱形C 、矩形D 、正方形 6、下列光源发出的光线中,能形成平行投影的是( )A 、探照灯B 、太阳C 、路灯D 、手电筒7、下列图形中,表示两棵小树在同一时刻阳光下的影子的图形可能是( )8、已知反比例函数的图象经过点(1,2),则它的图象也一定经过( )A 、(1,-2)B 、(-1,2)C 、(-2,1)D 、(-1,-2) 9、反比例函数xm y =的图象在第二、四象限内,那么m 的取值范围是( )A 、 0>mB 、 0=mC 、0<mD 、0≠m 10、甲、乙、丙三个同学排成一排拍照,则甲排在中间的概率是( )A 、21 B 、 31 C 、41 D 、无法确定二、填空题(每题4分,共20分)11、方程0)3)(2(=-+x x 的解是 。
12、菱形的两条对角线长分别为6和8,则此菱形的面积为___________。
13、我们把大型会场、体育看台、电影院建为阶梯形状,是为了 。
14、如果反比例函数xk y =的图象过点(2,-3),那么k = 。
15、在装有6个红球、4个白球的袋中摸出一个球,是红球的概率是 。
高频电子期末试卷题库

班级(学生填写) 姓名: 学号 命题 审题 审批: --------------------------------------------------- 密 ---------------------------- 封 --------------------------- 线 -------------------------------------------------(答题不能超出密封线)2008 ∼2009 学年第一学期 《高频电子线路》 考试试题A 卷使用班级(老师填写):电信06-1、2,电子06-1、2一、填空(每空1分,共20分)1.无线通信的传输媒质主要是( 自由空间 ),无线电信号的传播特性主要根据其所处的( 频段 )来区分。
2.高频小信号谐振放大器的主要作用是放大和( 选频 )。
为消除晶体管的反向作用,可用( 中和发 )法、( 失配法 )法来使其单向化,以提高放大器稳定性。
3.LC 回路并联谐振时,回路的阻抗最( 大 ),且为纯( 电阻 )。
4.频谱的线性搬移电路,是在频谱的搬移过程中,输入信号的频谱( 结构 )不发生变化。
而频谱的非线性搬移电路,输入信号的频谱不仅在( 频域 )上搬移,而且频谱( 结构 )也发生了变化。
5.锁相环是一个相位负反馈控制系统,当电路达到平衡状态时,虽然有( 剩余相位 )误差存在,但( 频率 )误差可以降低到零。
6.AFC 电路也是一种反馈控制系统,它与AGC 电路的区别在于控制对象不同,AGC 电路的控制对象是( 电压 )信号,而AFC 电路的控制对象是信号的( 频率 )。
7.噪声系数越大,则内部噪声越( 大 )。
对级联系统而言,其噪声系数主要取决于( 第一级 )。
8. 调制与解调都是( 频谱搬移 ) 过程,所以必须用( 非线性 )器件才能完成。
9. 并联型晶振中,晶体等效为( 电感 );在串联型晶振中,晶体等效为( 选频短路线 )。
二、单项选择题(每小题2分,共20分)1.若载波u C (t)=U C cos ωC t ,调制信号u Ω(t)= U Ωcos Ωt ,则调相波的表达式为( B )A .u PM (t)=U C cos (ωC t +m p sin Ωt )B .u PM (t)=UC cos (ωC t +m p cos Ωt ) C .u PM (t)=U C (1+m p cos Ωt )cos ωC tD .u PM (t)=kU ΩU C cos ωC tcos Ωt 2.某超外差接收机的中频为465kHz ,当接收550kHz 的信号时,还收到1480kHz的干扰信号,此干扰为 ( C ) A .干扰哨声 B .中频干扰 C .镜像干扰 D .交调干扰3.某调频波,其调制信号频率F =1kHz ,载波频率为10.7MHz ,最大频偏Δf m=10kHz ,若调制信号的振幅不变,频率加倍,则此时调频波的频带宽度为 ( B )A .12kHzB .24kHzC .20kHzD .40kHz 4.MC1596集成模拟乘法器不可以用作 ( D )A .混频B .振幅调制C .调幅波的解调D .频率调制 5.某单频调制的普通调幅波的最大振幅为10v ,最小振幅为6v ,则调幅系数班级(学生填写): 姓名: 学号: ------------------------------------------------ 密 ---------------------------- 封--------------------------- 线 ------------------------------------------------ (答题不能超出密封线)m a 为 ( C )A .0.6B .0.4C .0.25D .0.16.以下几种混频器电路中,输出信号频谱最纯净的是( C )A .二极管混频器B .三极管混频器C .模拟乘法器混频器 7.某丙类谐振功率放大器工作在临界状态,若保持其它参数不变,将集电极直流电源电压增大,则放大器的工作状态将变为 ( D )A .过压B .弱过压C .临界D .欠压 8. 鉴频的描述是( B )A .调幅信号的解调B .调频信号的解调C .调相信号的解调 9. 二极管峰值包络检波器适用于哪种调幅波的解调 ( C )A .单边带调幅波B .抑制载波双边带调幅波C .普通调幅波D .残留边带调幅波10.二极管峰值包络检波器,原电路正常工作。
西安邮电学院2008-2009第一学期微电子自动化等专业《概率论与随机过程》期末考试试题B及答案

卷 专业、年级: 微电子 09 级等
题号 一
二
三
四
五
六
七
八
九 总分
得分
一、填空题(每小题 3 分,共 30 分)
1、0.6 ;2、0.6 ;3、1 ;4、6;5、 N(3, 20) ;6、4;7、 1 ;8、{1, 2, 3, 4, 5, 6} ;9、 N (0, 2t ), N (0, 2 (t s))
………2 分
由中心极限定理 X 近似服从 N(120, 48) .
………4 分
P{ X N } P{ X 120 N 120} { N 120} 0.999 .
48
48
48
………7 分
查标准正态分布表得 N 120 3.1 ,即 N 120 3.1 48) 141.5 48
0 1/ 2 1/ 2
6.(本小题 10 分)设齐次马氏链的一步转移概率矩阵为 P 1 / 2 0 1 / 2 ,试讨论
1/ 2 1/ 2 0
此链的遍历性,如果具有遍历性,求出极限分布;如果不具有遍历性,说明原因.
说明:用本模板出题,请将插入方式换成改写方式,除填空题、图解及特殊要求外,一般不留答题空间;装订试卷、考生答卷纸不得拆开或在框外留有任何标记,否则按零分、(本小题 8 分)解:令 B : 摸出一球是红球; Ai : 球取自 i 号箱( i 1,2,3 )
………3 分
由贝叶斯公式,有
P( A1 | B)
P( A1 )P(B | A1 ) 1
3
P( Ai )P(B | Ai )
8
i 1
………6 分
故该球取自 1 号箱的概率为 1 . 8
装
专业班级
装
盐城师范学院期末考试试卷

1 盐城师范学院考试试卷2008 — 2009 学年第一学期化学化工学院制药工程专业《物理化学B(2)》试卷A班级学号姓名一、填空题(本大题共15空,每空1分,计15分)1、同一电导池测得浓度为0.01mol·mol·dmdm -3的A 溶液和浓度为0.1 mol·mol·dm dm -3的B 溶液的电阻分别为1000Ω和500Ω,则它们的摩尔电导率之比Λm (A)/Λm (B)等于。
2、混合等体积的0.08 mol·mol·dm dm -3KI 和0.1 mol·d m dm -3 AgNO3溶液得AgI 溶胶,试写出该溶胶的胶团结构式:。
3、25℃时,0.002 mol·mol·kg kg -1CaCl 2水溶液中离子平均活度系数为γ±1,0.002 mol·mol·kgkg -1CuSO 4水溶液中离子平均活度系数为γ±2,则γ±1γ±2。
4、液滴越小,其饱和蒸气压越;气泡越小,气泡内液体的饱和蒸气压越。
(选填“大”或“小”)。
5、设物质A 可发生两个平行的一级反应:(a)C B A Ea ka +¾¾®¾,(b)E D A Eb kb +¾¾®¾,式中,B 和C 是需要的产品,D 和E 为副产物。
设两反应的频率因子相等且与温度无关,E a >E b ,则反应(a)和反应(b)相比,速率较大的反应是,升高温度对反应更有利。
6、对于均相反应bB→W+Z ,测得速率常数k 与温度T 的关系是lgk = -3800/T +13,该反应的指前因子为,活化能为。
7、将反应Fe 2++Ag +→Fe 3++Ag(s)设计成电池,其电池符号为:。
8、测定电池电动势时,盐桥的作用是;对于电池Ag(s) AgCl(s) | Cl (a 1)‖Ag +|Ag(s)不能使用含Cl --离子的电解质溶液作盐桥,其原因是。
河南农业大学《大学英语I》期末考试试卷(B卷

河南农业大学2008—2009学年第一学期《大学英语I》期末考试试卷(B卷)Jan.8,2009 (for Grade 2008)●注意事项1.将自己的姓名、班级、学号、课头号和座位号写在答题卡和答题纸上。
2.答题纸上【准考证号】的9个方括号内填入你的学号,注意:从学号的第二位填起,并在相应栏内的数字上划线;【试卷类型】一律涂[A]。
3.答案一律涂写在答题卡上,写在试卷册上的一律无效。
正确的涂卡方法是[A][B][C][D],使用其它符号答题者不给分。
划线要有一定的粗度,浓度要盖过底色。
4.请监考老师在考试结束后分别将试卷、答题纸和答题卡收齐点清后按座位号顺序排列。
5.Part I (Section C)、Part IV、V写在Answer Sheet上,并和试卷分开上交。
Part I Listening Comprehension (20 points )Section A (1×0.5 point)Directions: In this section, you will hear 10 short conversations. At the en d of each conversation, a question will be asked about what was said. Both t he conversation and the question will be spoken only once. After each questi on there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the c entre.1. A) Second Avenue. B) Fifth Avenue.C) Eighth Avenue. D) Fourth Street.2. A) A dance. B) A lecture.C) The Student Center. D) A meeting.3. A) This Monday. B) The coming Monday.C) This Tuesday. D) Next Tuesday.4. A) He can get his money refunded.B) The sweater fits him perfectly.C) The sweater isn’t available in a larger size.D) He can’t get a refund without a receipt.5. A) A half hour. B) An hour. C) Ninety minutes. D) Two hours.6. A) Secretary. B) Business administration.C) Home economics. D) Biology.7. A) To have lunch outside. B) To go to a cafeteria.C) To continue working in the company. D) To suggest their company cooking better food.8. A) 5 years. B) 100 years. C) 90 years. D) 105 years.9. A) The man will pay ten dollars. B) The man will pay twenty dollar s.C) The man will pay thirty dollars. D) The man will pay forty dolla rs.10. A) The woman does not like to stay at home alone.B) The woman in deed needs some days off.C) The woman prefers to go on a vacation.D) The woman will go on a vacation.Section B (1×1 point)Directions:In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a questio n, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on the Answer Shee t with a single line through the centre.Passage OneQuestions 11 to 13 are based on the following passage:11. A) They thought it was acceptable.B) They thought it didn’t make a difference both to the man andthe woman.C) They thought it was impolite and foolish.D) They thought it was nothing.12. A) Social customs are the same in every country.B) Social customs don’t change as time goes by.C) Social customs are only suitable for gentlemen.D) Social customs are changeable in terms of time and place.13. A) Don’t make people feel uncomfortable by pointing out their mistakes in manners and customs.B) Eating peas with your knife is considered good manners.C) Correct them if you see your guests having the wrong manners.D) Don’t go to a for mal dinner party if you are not sure about your manners.Passage TwoQuestions 14 to 16 are based on the following passage:14. A) 700,000,000. B) 35,000,000. C) 75%. D) 44.15. A) Business, aviation and radio.B) Pop, commerce and sport.C) Aviation, sport and pop music.D) Technology, sport and aviation.16. A) 75%. B) 44%. C) 60%. D) 35%.Passage ThreeQuestions 17 to 20 are based on the following passage:17. A) Collapse and delirium.B) Indigestion and depression.C) Liable to lose one’s temper and bec ome thin.D) Complications and illness.18. A) Eating or drinking to excess.B) Taking a sleep.C) Spending hours in talking with their friends.D) Screaming loudly.19. A) Singing and dancing. B) Eating and drinking.C) Screaming and dancing. D) Shopping and watching movies.20. A) Stress may cause serious problems.B) There are many methods of coping with stress.C) What is the most important is that people can deal with stresseffectively rather than how people cope with it.D) What are the most effective methods of relieving stress? Section C (1×1 point)Directions: In this section, you will hear a passage three times. Wh en the passage is read for the first time, you should listen careful ly for its general idea. When the passage is read for the second tim e, you are required to fill in the blanks with the exact word(s) you have just heard. Finally, when the passage is read for the third ti me, you should check what you have written.If you are in a hurry and you want to have a quick meal there i s no better place than a (21) _ _ _ _ _ _ _ restaurant. You go into the restaurant, pick up a tray, knife, fork, and spoon and queue a t a counter where the food is on (22) _ _ _ _ _ _ _ _ . You pick ou t what you want and put it on your tray, which you have to (23) _ _ _ _ _ _ _ _ _ a special rack till you reach the cashier. The cashi er will give you your bill. After (24) _ _ _ _ _ _ _ _ _ , you take your tray to any table you like. You can sit alone or with anotherPart II Reading Comprehension (40 points 1×2)Directions: There are four reading passages in this part. Each passag e is followed by five questions. For each question there are four sug gested answers marked A, B, C and D. You should choose the best answe r and mark the corresponding letter on the Answer Sheet with a single line through the center.Questions 26-30 are based on Passage One:Go ahead, laugh. It’s strong medicine, r esearchers are learning. Even the physical act is good for you, says William Fry, professor at Stanford University and pioneer in laughter research. It increases b lood flow and contracts abdominal muscles. But the benefits go beyond a workout. The most ast onishing evidence of laughter’s power comes from a 1997 study of 48 heart-attack patients. Half-watched comedy sh ows for 30 minutes every day; the rest served as controls. After a ye ar, ten patients in the control group had suffered repeat heart attac ks, compared with only two in the group that watched the shows.Can a good laugh help patients get well? In an experiment at the Univ ersity of California at Los Angeles, called Rx Laughter, scientists p lan to test the effect of laughter in children with serious illnesses, including cancer. Early results suggest that funny videos help kids handle uncomfortable or painful procedures.Justin Ybarra, 13, already knows that. He was in considerable pain wh en he woke up from surgery --- until Bill Marx, a volunteer for Rx La ughter, appeared at his bedside. Marx told jokes, made faces and danc ing around the hospital room. “Having something to laugh at took my mind off the pain,” says Justin. “When you’re laughing, you can’t help but feel better.”26. The author implies that ________.A) a good laugh helps one recoverB) funny videos help patients get wellC) children are fond of jokes and funny moviesD) even there’s nothing to laugh at, the act of laughing benefits27. RX Laughter is the name of ________.A) a kind of laughter B) a scientific labC) an experiment D) a laughter research center28. Laughter benefits the patients because ________.A) it makes them stronger B) it can cure their illnessesC) it help them recover more quickly D) it controls their blood flo w29. Justin said laughter could make him ________.A) exercise his abdominal muscle B) have a better appetiteC) excited and happy D) forget the pain from the surgery30. The main idea of the passage is ________.A) researchers are doing experiments on laughterB) laughing is good medicine for the patientsC) patients usually prefer comedies to tragediesD) children all like clowns very muchQuestions 31-35 are based on Passage Two:Under proper conditions, sound waves will be reflected from a hil lside or other such obstruction. Sound travels at the rate of about o ne fifth of a mile per second. If the hill is eleven hundred feet awa y, it takes two seconds for the sound to travel to the hill and back. Thus, by timing the interval between a sound and its reflection (the echo), you can estimate the distance to an obstruction.During World War II the British used a practical application of this principle to detect German planes on their way to bomb London long be fore the enemy was near the target. They used radio waves instead of sound waves, since radio waves can penetrate fog and clouds. The outn umbered Royal Air Force (RAF) always seemed to the puzzled Germans to be lying in wait at the right time and never to be surprised. It was radio echoes more than anything else that won the battle of Britain. Since the radio waves were used to tell the direction in which to send the RAF planes and the distance to send them (Their range of light, in other words), the device was called radio directing and ranging, and from the initials the word radar (雷达) was coined.31. Sound waves reflected from a hill can be used to estimate the ___ _____.A) height of the hill B) speed of soundC) distance to the hill D) intensity of sound32. The estimate is based on the ________.A) direction of the hill B) accepted speed of soundC) interval between sound and echo D) both B and C33. Practical application of this principle resulted in ________.A) new electronic instruments for planesB) a radio directing and ranging deviceC) new radio sets for RAF bomberD) an electronic detecting device34. Radar enabled the English to ________.A) detect German planes on their way to LondonB) direct the outnumbered RAF planes effectivelyC) confuse German bomber pilotD) both A and B35. The British used radio waves because they ________.A) were more exact than sound waves B) could not be detectedC) could penetrate fog and clouds D) were easier to use than sound wavesQuestions 36-40 are based on Passage Three:Some psychologists maintain that mental acts such as thinking are not performed in the brain alone, but that one’s muscles also parti cipate. It may be said that we think with our muscles in somewhat the same way that we listen to music with our bodies.You surely are not surprised to be told that you usually listen to mu sic not only with your ears but with your whole body. Few people can listen to music that is more or less familiar without moving their bo dy or, more specifically, some part of their body. Often when one lis tens to a symphonic (交响乐) concert on the radio, he is tempted to d irect the orchestra even though he knows there is a competent conduct or on the job.Strange as this behavior may be, there is a very good reason for it. One cannot derive all possible enjoyment from music unless he partici pates, so to speak, in its performance. The listener “feels” himsel f into the music with more or less pronounced motions of his body. The muscles of the body actually participate in the mental process ofthinking in the same way, but this participation is less obvious bec ause it is less pronounced.36. Some psychologists maintain that thinking is ________.A) not a mental processB) more of a physical process than a mental actionC) a process that involves our entire bodiesD) a process that involves the muscles as well as the brain37. The process of thinking and that of listening are similar in that ________.A) both are mental actsB) muscles participate in both processesC) both processes are performed by the entire bodyD) we derive equal enjoyment from them38. The pronounced body motions are a listener’s way of ________.A) “feeling” the musicB) participating in the performanceC) deriving enjoyment from the musicD) all of the above39. Body movements are necessary in order for the listener to _______ _.A) hear the music B) appreciate the musicC) enjoy the music fully D) completely understand the music40. According to selection, muscle participation in the process of th inking is ________.A) deliberate B) obvious C) not readily apparent D) very pronounced Questions 41-45 are based on Passage Four:Chess must be one of the oldest games in the world. An Arab trave ler in India in the year 900 wrote that it was played “long, long ag o”. Chess was probably invented in India, and it has been played eve rywhere from Japan to Europe since 1400. The name “chess” is intere sting. When one player is attacking the other’s king, he says, in En glish, “check”. When the king has been caught and cannot move anywh ere, he says “check mate”. These words come from Persian. “Shah ma t” means “the king is dead”. That is when the game is over, and on e player has won.Such an old game changes very slowly. The rules have not always been the same as they are now. For example, at one time the queen could on ly move one square at a time. Now she is the strongest piece on the b oard. It would be interesting to know why this has happened! Chess ta kes time and thought, but it is a game for all kinds of people. You d on’t have to be a champion in order to enjoy it. It is not always played by two people sitting at the same table. The first time the Amer icans beat the Russians was in a match played by radio. Some of the c hess masters are able to play many people at the same time. The recor d was when one man played 400 games! It is said that some people play chess by post. This must make chess the slowest game in the world.41. Which of the following is known to be TRUE?A) Chess is an old Indian traveling game.B) Chess is the oldest game in the world.C) Chess was played in Japan and Europe before 1400.D) Chess was played in India long before 900.42. One player has won the game when ________.A) he attacks the other player’s kingB) he says some Persian wordsC) the other player’s king can not move anywhereD) he says “check” to the oth er player43. Which of the following will you hear when one player has won the game?A) “Shah mat”. B) “Check”. C) “The king is dead”. D) “Check mate”.44. Which of the following is NOT correct?A) All kinds of people can play chess.B) Only two people sitting at the same table can play chess.C) Some people write to each other while playing chess.D) The Russians lost the game played by radio.45. According to the old rules of the game, ________.A) the queen was the strongest piece on the boardB) the king had to be attacked all the timeC) the queen could move no more than one square at a timeD) the king could not move anywherePart III Vocabulary and Structure (15 points 1×0.5)Directions: There are 30 incomplete sentences in this part. For each sentence there are four choices marked A, B, C and D. Choose the ONE that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.46. The milk smells ____ sour.A) as if it is B) like it is C) as if it was D) like it was47. My income is now _________I used to.A) twice much B) twice C) twice as much D) twice as more48. Successful businessmen today are likely to be young , aggressive and well- educated.____ ,they are willing to take risks to achieve success.A) Above all B) After all C) In all D) At all49. My parents called me yesterday offering me their congratulations _____ my go od record.A) to B) for C) in D) on50. I thought I heard Mom say Martin saved a child from drowning____.A) more or less B) or something C) kind of D) sort of51. The city government promises to____ the problem of unemployment in real ear nest.A) postpone B) tackle C) compose D) anticipate52. This fashion show was ____ by many big companies.A) chaired B) sponsored C) participated D) assigned53. Sports is not just for fun or exercise. It’s also good for ____ building.A) capacity B) reputation C) confidence D) character54. He has a reputation ____ inability to inspire.A) of B) with C) about D) for55. Lying in hospital, the patient____ the outside world by watching news programson TV every night.A) kept in touch with B) faced up toC) turned the clock back D) slowed down56. Our only request is that this as soon as possible.A) must settle B) is settled C) settled D) be settled57. _______ that they will arrive much later since it is rush hour.A) Chance is B) It’s possibly C) Lik ely is D) Chances are58. Statistics _______ that the population of the country will be dou bled in 20 years’ time.A) shows B) show C) has shown D) showed59. After thirty years as a teacher, his reflections _____ life were worth listening to.A) of B) with C) on D) for60. Nowadays, a lot of children are so immersed in _______ games that they neglect their studies.A) electrical B) electric C) electronics D) electronic61. 51. A good teacher is able to _____ a complicated idea in very si mple terms.A) convey B) go by C) put across D) bring abou t62. You see the lightning ________it happens, but you hear the thunde r later.A) the instant B) for an instant C) on the instant D) in an insta nt63. The professor thought that I was making good progress in my studi es and told me to _____ my good work.A) keep up B) go ahead with C) hold back D) come up wi th64. The meeting was _____ by the National Association of Women for the purpose of furthering the women’s liberation movement.A) chaired B) sponsored C) participated D) assigned65. I have searched all the book stores in this town. The book you as ked for is not _____.A) tedious B) vivid C) available D) sufficient66. Unfortunately, those who _____ the accident cannot recall what ha ppened. Therefore the cause of the accident remains a mystery.A) survived B) escaped C) abandoned D) spotted67. The film provides a deep _____ into a wide range of human qualiti es and feelings. A) insight B) imaginatio n C) fancy D) outlook68. It is high time that such practices _____.A) are ended B) be ended C) were endedD) must be ended69. Urban crowdedness would be greatly relieved if only the _____ cha rged on public transport were more reasonable.A) fees B) fares C) payments D) costs70. The doctor had almost lost hope at one point, but the patient fin ally _____.A) pulled out B) pulled over C) pulled up D) pulled thr ough71. You’d rather watch TV this evening, ?A) isn’t it B) hadn’t you C) wouldn’t you D) won’t you72. All is a continuous supply of fuel oil.A) which is needed B) that is neededC) the things needed D) for their needs73. Jean doesn’t want to work right away because she thinks that if she a job sheprobably wouldn’t be able to see her friends very often.A) has to get B) had got C) were to get D) could have got74. Stressful environments lead to unhealthy behaviors such as poor eating habits, which _________increase the risk of heart disease.A) in return B) by chance C) by turns D) in turn75. How to create enough jobs for the laid-off workers is a(n) _____ problem for which there is no simple solution.A) complex B) internal C) emergency D) delicatePart IV Cloze (10 points 1×1)Directions: Put in the missing words and write your answer on the an swer sheet!Over the years, I have written extensively about animal-intellige nce 76 and the controversy that surrounds them. Do animals really hav e 77 , what we call consciousness? Wondering whether there might be b etter ways to 78 animal intelligence than experiments designed to tea。
基因工程

安徽农业大学2008―2009学年第一学期《 基因工程原理 》试卷(B 卷) 考试形式: 闭卷,2小时,总分100分 适用专业: 06生物技术 考试时间: 2008.11.一大题:填空题(共7小题,每空1分,共20分) 1. 基因工程的两个基本特点是:① ,② 。
2. 部分酶切时通常可采取的措施有:① ,② ,③ 。
3. DNA 聚合酶Ⅰ具有三种活性:① ,② ,③ 。
4. ColE1是一种 型天然质粒载体,能产生 ,但没有 基因,不能通过 筛选。
5. 在DNA 分离纯化过程中,造成DNA 分子断裂的因素很多,主要有:① ,② ,③ 。
6. 7.在原核生物mRNA 的转录过程中,有三个序列是必不可少的,它们是① ,② ,③ 。
7. 碱法分离质粒DNA 时,溶液Ⅰ的作用是 ,溶液Ⅱ和溶液Ⅲ的作用分别是使DNA 。
…… :专业班级:姓名: 学号:装订线15分)1. 第一个用于构建重组体的限制性内切酶是()(a)Eco RⅠ(b)Eco B (c)Eco C (d)Eco R 2. 下列限制性内切核酸酶中,选用()时要考虑连接后外源DNA的插入方向。
(a)Eco RⅠ(b)Eco RⅡ(c)Bam HⅠ(d)PstⅠ3. 在下列表型中,()是基因工程上理想的受体菌表型。
(a)r+m+rec+(b) r-m-rec-(c)r+m+rec-(d)r-m-rec+ 4. 因研究重组DNA技术而获得诺贝尔奖的科学家是()(a)A.Kormberg (b)W.Gilbert(c)P.Berg (d)B.McClintock5. 在原核生物复制子中,除去RNA引发体并加入脱氧核糖核苷酸的是()(a)DNA聚合酶Ⅲ(b)DNA聚合酶Ⅱ(c)DNA聚合酶Ⅰ(d)DNA连接酶6. 变色氧化的酚不能用于DNA的分离,主要原因是()(a)使DNA的磷酸二脂键断裂(b)会改变pH值(c)同DNA形成复合物(d)在DNA分离后不易除去7. 在利用lacZ失活的显色反应筛选中,IPTG的作用是()。
2008-2009学年度第一学期中国语文试题卷(B)

华中科技大学2008~2009学年第一学期中国语文考试试题卷(B卷)(闭卷)(说明:答案一律写在答题纸上,否则无效,且答题卷与试题卷分开交)一、多项选择题(每题2分,共7题14分,多选、少选、错选一律不得分)1、古文运动中唐朝代表人物是()。
A、李白B、韩愈C、元稹D、柳宗元2、明清时期的时文是 ( )。
A、小品文B、抒情散文C、八股文D、游记散文3、一个绿衣的邮夫,低着头儿走路;——也有时看看路旁。
他的面貌很平常,大半安于他的生活,不带着一点悲伤。
对上述诗句的描述是正确的有()A、作者冯至B、作者刘半农C、题目是《绿衣人》D、这首诗的最后一句是‚这个人可怕的时候到了!‛。
4、20世纪80年代,散文创作逐渐回到个人体验,表现日常事态和心绪,代表作家有()A、夏衍B、黑孩C、邹韬奋D、周佩红5、对‚浮云长长长长长长长长长消‛句读合理的分别是:()A、浮云长长,长长长长。
长长长消。
B、浮云长,长长长。
长长,长长长消。
C、浮云长长长长。
长长长,长长消。
D、浮云长长长长。
长长,长长长消。
6、下列句子有歧义的是:()A、三个报社的记者来这里采访。
B、这个人头发长得有些怪。
C、休息了一会儿,他想起来了。
D、他走了一天。
7、词语‚酱紫‛指称的是一种颜色,但在网络语言中,所表达的意思却是‚这样子‛。
比较合理的解释是:()A、语音弱化B、语音脱落C、谐音D、比较二、填空题(每空1分,共20分)8、中国古代诗歌因为诗经和楚辞,形成‚诗骚传统‛,分别是()和()精神。
9、魏晋六朝的小说一般分为志人小说和( )。
10、中国古代戏曲的发展经历了宋代的南戏、元代的()、明清的()及京戏。
11、现代文学中率先兴起的散文作品是议论时政的杂感短文,统称(),代表作家有()、()、()、()。
12、朦胧诗派的代表诗人和他们的代表作有食指的《四点零八分的北京》、()的《致橡树》、()的《回答》等。
13、当()在一定条件下成为社会的交际工具,并成为孩子们的母语时,就发生了克里奥尔化,形成克里奥尔语。
数控编程试卷B

2008-2009学年第一学期《数控原理与编程》期末考试试卷(B)班级:07统招数控班、07中英数控班得分:一判断题(每题1分,共10分)( )1. G00、G01指令都能使机床坐标轴准确到位,因此它们都是插补指令。
( )2.螺纹指令G32 X41.0 W-43.0 F1.5是以每分钟1.5mm的速度加工螺纹。
( )3.在数控铣床加工设备的编程中,G91G00X0Y0与G90G00X0Y0执行的结果总相同。
( )4.换刀点应设置在被加工零件的轮廓之外,并要求有一定余量。
( )5.刀具偏置量D05的数值大小可能等于刀具半径,也可能不等于刀具半径。
( ) 6.数控加工程序的顺序段号必须顺序排列。
( )7.在FANUC数控铣床编程系统中,G02/G03指令中的R值可取正值,也可取负值。
( ) 8.M00功能属于辅助功能指令,含义是主轴停转。
( ) 9.G代码可以分为模态G代码和非模态G代码。
( ) 10.机床某一部件运动的正方向是使刀具远离工件的方向。
二、填空题(每空1分,共15分)1.在FANUC数控铣床系统中,指令G41的含义是:————————。
2.————是表示数控机床编程系统切削液打开的指令。
3.在FANUC0T数控车床系统中,指定刀具切削进给速度单位是mm/r的指令是:————。
4.数控铣床编程系统中的G01的含义是:————,其基本格式为:————。
5.在带FANUC系统的数控铣床上加工圆弧轮廓用G02/G03指令编程,若在YOZ平面内顺时针加工一整圆轮廓,其编程格式为:——————————————————。
6.加工中心与普通数控机床相比最显著的区别是:——————————————————。
7.铣削平面轮廓曲线工件时,铣刀半径应———————(填大于或小于)工件轮廓的最小凹圆半径。
8.FANUC数控铣床编程系统,子程序结束指令为:——————————————。
9.在数控铣钻孔循环中,——————平面表示刀具从快进转为工进的转折位置,该平面一般取距工件上表面2-5mm。
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西安欧亚学院2008-2009学年第一学期考试试卷
专业:统招本科各专业课程:马克思主义基本原理年级:07级B卷
考试说明:
本考试为开卷考试,考生可以查阅教材和学习笔记,但不得交头接耳,相互研究、交谈、抄袭。
一、多项选择题(本大题共10小题,每小题2分,共20分)在每小题列出的四个备选项中,有二至五个是符合题目要求的,请将正确选项填在下表中。
未填、错填、多填或少填均无分。
1、马克思主义产生的直接理论来源有
A.德国古典哲学 B.英国古典政治经济学
C.法国的空想社会主义 D.马克思主义伦理学
2、辩证唯物主义关于意识起源问题的基本观点是
A.先于自然界而存在 B. 人先天具有的
C.自然界长期发展的产物 D.社会的产物
3、“古语说:“奢糜之始,危亡之渐。
”这句话是说,奢侈逐步发展会导致危亡。
其中包含的哲学道理有
A 现象是本质的外部表现
B 特殊性中包含着普遍性
C 量变是质变的必要准备
D 质变是量变的必然结果
4、对同一句格言,年轻人所理解的意义,总没有饱经风霜的老年人所理解得广泛和深刻。
这一哲学观点在认识论上说明了
A.认识来源于经验
B.在经验的积累中加深认识
C.认识的深刻性与经验的多少在一定意义上成正比例
D.认识的深刻性与知识的积累有密切联系
5、党的思想路线的内容有
A.一切从实际出发 B.实事求是 C.理论联系实际D.在实践中检验真理和发展真理
6、价值规律的内容和要求是
A 商品的价值量由生产商品的社会必要劳动时间决定
B 商品交换以商品的价值量为基础
C 商品交换必须实行等价交换
D 价格围绕价值上下波动
7、能够获得平均利润的资本家有
A.工业资本家 B.商业资本家
C.银行资本家 D.借贷资本家
8、垄断与竞争并存的原因是
A.垄断不能消除商品经济的竞争基础
B.科技进步和创新不断激发新的竞争
C.中小企业仍然大量存在
D.垄断组织不能囊括一切商品生产
9、资本主义在全世界范围被社会主义代替是一个很长的历史过程,在这过程中两种社会制度的国家
A.可以相互交往 B.可以和平共处,但也存在斗争
C.不存在和平共处的可能性 D.可以平等互利地发生经济联系10、资本主义基本矛盾主要表现在
A.各个企业内部生产的有组织性和整个社会生产无政府状态之间的矛盾
B.社会生产无限扩大的趋势与有支付能力的需求相对狭小的矛盾
C.无产阶级与资产阶级之间的矛盾
D.生产社会化和生产资料资本主义私人占有形式之间的矛盾
二、简答题(本大题共5小题,每题8分,共40分)
11、简述物质的定义及其意义
12、简述感性认识和理性认识的关系。
13、简述社会意识相对独立性的表现。
14、为什么说剩余价值规律是资本主义社会的基本规律?
15、简述当代资本主义的新变化。
三、材料分析题(本大题共2小题,每题20分,共40分)
16
材料1:
马克思说:“历史活动是群众的事业”,人民群众的历史作用,“是在这个喧嚣的舞台背后悄悄地进行的,并且真正地起着推动作用。
”
材料2:
十六大政治报告指出:“最大多数人的利益和全社会全民族的积极性、创造性是最具有决定性的因素。
”……“任何时候我们都必须坚持尊重社会发展规律与尊重人民历史主体地位的一致性,坚持为崇高理想奋斗与为最广大人民谋利益的一致性,坚持完成党的各项工作与实现人民利益的一致性。
”
材料3:
党的十六届三中全会提出的科学发展观认为:坚持以人为本,树立全面、协调、可持续的发展观,促进经济社会和人的全面发展。
(1)材料1阐明了什么哲学观点?
(2)结合材料1、2、3说明科学发展观的本质和核心就是以人为本。
17、下面是一组有关工业革命和经济全球化的材料:
材料1
从18世纪60年代开始的工业革命,促进了大工业的发展。
“大工业创造了交通工具和现代的世界市场,控制了商业,把所有的资本都变为工业资本,从而使流通加速(货币制度得到发展)、资本集中……它首次开创了世界历史,因为它使每个文明国家以及这些国家中的每一个人的需要的满足都依赖于整个世界,因为它消灭了各国以往自然形成的闭关自守的状态。
”
摘自马克思恩格斯《德意志意识形态》材料2
19世纪后半期发生的第二次工业革命,使人类进入电气时代,许多发达资本主义国家的生产和分工不断深化,极大地推动了生产和交换的国际化,并最终形成了以宗主国和殖民地的国际分工体系和统一的世界市场。
材料3
二战结束后,随着第三次工业革命的发展,出现了资本和贸易的自由化,国际直接投资迅速上升。
1995年世贸组织正式成立。
目前,世贸组织成员国间的贸易量占全球贸易的95%;联合国贸发会议《2001年世界投资报告》显示,去年全球外国直接投资达1.3万亿美元。
根据材料1.2.3,说明世界经济发展的趋势及其后果。