河北大学_921信息组织2015年_考研专业课真题试卷
河北大学2015年英语复试真题
2015年河北大学硕士研究生复试英语试题特别说明：本试题共100小题，满分共计100分，考试时间共计120分钟，请用2B铅笔认真涂写试题卡，写在本试卷无效。
Part Ⅰ Listening Comprehension(20points,1point for each) Directions: In this section, you will hear 8 short conversations and 3 long conversations. At the end of each conversation, one or more questions will be asked about what said. Both the conversation and the questions will be spoken only once. After each question 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 Answer Sheet 2 with a single line through the centre.1. A) He is pleased to sit on the committeeB) He is willing to offer the woman a handC) He will tell the woman his decision laterD) He would like to become a club member2. A) Their planned trip to Vancouver is obviously overpricedB) They should borrow a guide book instead of buying oneC) The guide books in the library have the latest informationD) The library can help order guide books about Vancouver3. A) He regrets having taken the history courseB) He finds little interests in history booksC) He has trouble finishing his reading assignmentsD) He has difficulty in writing the weekly book report4. A) The man had better choose another restaurantB) The new restaurant is a perfect place for datingC) The new restaurant caught her fancy immediatelyD) The man has good taste in choosing the restaurant5. A) He has been looking forward to spingB) He will clean the woman’s boots for springC) He has been waiting for the winter saleD) He will help the woman put things away6. A) At a tailor’sB) In a cloth storeC) At Bob’s homeD) In a theatre7. A) His guests favors Tibetan drinksB) Mineral water is good for healthC) His water is quite extraordinaryD) Plain water will serve the purpose8. A) Report the result of a discussionB) Submit an important documentationC) Raise some environmental issuesD) Revise an environmental reportQuestions 9 to 12 are based on the conversation you have just heard.9. A) They pollute the soil used to cover themB) They are harmful to nearby neighborhoodsC) The rubbish in them takes long to dissolveD) The gas they emit is extremely poisonous10.A) Growing populationsB) Changed eating habitsC) Packaging materialsD) Lower production cost11.A) By saving energyB) By reducing poisonous wastesC) By using less aluminumD) By making the most of materials12.A) We are running out of natural resources soonB) Only combined efforts can make a differenceC) The waste problem will eventually hurt all of usD) All of us can actually benefit from recyclingQuestions 13 to 15 are based on the conversation you have just heard.13. A) MiamiB) BellinghamC) VancouverD) Boston14. A) To get information on one-way tickets to CanadaB) To inquire about the price of “Super saver ” seatsC) To get advice on how to fly as cheaply as possibleD) To inquire about the shortest route to drive home15. A) Join a tourist groupB) Avoid trips in public holidaysC) Choose a major airlineD) Book tickets as early as possibleQuestions 16 to 20 are based on the conversation you have just heard.16. A) His father caught a serious disease.B) His mother passed away.C) His mother left him to marry a rich businessman.D) His father took to drinking.17.A) To win over the majority of passengers from airlines in twenty years.B) To reform railroad management in western European countries.C) To electrify the railway lines between major European cities.D) To set up an express train network throughout Europe.18. A) Major European airlines will go bankrupt.B) Europeans will pay much less for traveling.C) Traveling time by train between major European cities will be cutby half.D) Trains will become the safest and most efficient means of travelin Europe.19. A) Train travel will prove much more comfortable than air travel.B) Passengers will feel much safer on board a train than on a plane.C) Rail transport will be environmentally friendlier than airtransport.D) Traveling by train may be as quick as, or even quicker than, byair.20. A) In 1981.B) In 1989.C) In 1990.D) In 2000.Part Ⅱ Vocabulary and Structure(40points,1 point for each) Directions: Choose the best answer from the four choices given.21. In a typhoon, winds _____ a speed greater than 120 kilometers per hour.A. assumeB. accomplishC. attainD. assemble22. Professor Smith and Professor Brown will _____ in giving the class lectures.A. exchangeB. alterC. shiftD. alternate23. Pack the cake in a strong box, or it might get _____ in the post.A. splashedB. spiltC. crushedD. crashed24. The thief _____ the papers all over the room while he was searching.A. abandonedB. vanishedC. scatteredD. deserted25. Today, housework has been made much easier by electrical _____.A. facilitiesB. appliancesC. instrumentsD. equipment26. The _____ of the trees in the water was very clear.A. mirrorB. sightC. reflectionD. shadow27. One _____ needed when making a cake is flour; another is sugar.A. containerB. ingredientC. contentD. equivalent28. They have been waiting for many hours to see the singer, but the airplane must have been _____.A. behind the timesB. behind scheduleC. ahead of timeD. in no time29. Neither of them thought highly of him and they both tried to _____ him in his work.A. hamperB. supportC. assistD. encourage30. Her display of bad temper completely _____ the party.A. harmedB. damagedC. spoiltD. hurt31. We forgave his bad temper because we knew that his son's illness had put him under great _____.A. emotionB. excitementC. crisisD. stress32. The reference she made to her friend, the poet, was interesting but too _____ for anyone to appreciate.A. drasticB. dullC. obscureD. distinct33. He _____ his engagement just before the wedding.A. broke outB. broke away fromC. broke offD. broke up34. When she heard from the hospital that her father had died, she _____ into tears.A. burstB. wentC. explodedD. fell35. Your help is _____ for the success of the project.A. indispensableB. indicativeC. inevitableD. inherent36. _____ the English examination I would have gone to the concert last Sunday.A. In spite ofB. But forC. Because ofD. As for37. It was difficult to guess what her _____ to the news would be.A. impressionB. commentC. reactionD. opinion38. Our attitude toward our teachers should be _____, but not slavish or superstitious.A. respectableB. respectedC. respectiveD. respectful39. We could see that he was trying to _____ his own responsibility for the delay, instead of accepting his fault.A. run overB. smooth overC. pass offD. turn down40. Glemp's heroic flight into space entitled him _____ a place in history.A. forB. withC. toD. of41. He's _____ drink and never does a stroke of work.A. gone toB. taken toC. taken upD. gone for42. "Who is responsible for sending out misinformation?""Most of the fault lies _____ the administration."A. inB. toC. onD. with43. People who live in a small village are bound to see a good _____ of each other.A. sumB. quantityC. dealD. amount44. Maria _____ missed the first train so as to travel on the same one as John.A. deliberatelyB. intensivelyC. decisivelyD. objectively45. They always kept on good _____ with their next-door neighbors for the children's sake.A. friendshipB. relationsC. intentionsD. terms46. Do you think a wife should _____ her habits and tastes to those of her husband?A. complyB. confirmC. consentD. conform47. He was afraid that the branch might bend over and break, and he would be sent _____ to the ground.A. crashingB. throwingC. rushingD. dropping48. High interest rates _____ people from borrowing money.A. discourageB. decreaseC. disturbD. disgust49. Despite their good service, most inns are less costly than hotels of _____ standards.A. equivalentB. uniformC. alikeD. likely50. The two things are the same in outward form but different _____.A. in additionB. in briefC. in commonD. in essence51. _____ it is a good thing I did not get the post I had applied for, though I must admit that I was disappointed at the time.A. By the wayB. In a wayC. In the wayD. In no way52. _____ inviting guests and not treating them properly!A. StrangelyB. FantasticallyC. SurprisinglyD. Fancy53. With sufficient scientific information a manned trip to Mars should be _____.A. obtainableB. potentialC. considerableD. feasible54. The generation _____ makes it difficult for parents to understand their children's opinions.A. divisionB. gapC. separationD. interval55. If the boy had _____ the dog alone it wouldn't have bitten him.A. setB. leftC. hadD. put56. They were so far away that I couldn't _____ their faces clearly.A. see throughB. make upC. see offD. make out57. Achieving a high degree of proficiency in English as a foreign language is not a mysterious _____ without scientific basis.A. processB. practiceC. procedureD. program58. I must go now. _____, if you want that book I'll bring it next time.A. IncidentallyB. AccidentallyC. OccasionallyD. Subsequently59. A completely new situation is likely to _____ when the school leaving age is raised to 16.A. arouseB. riseC. ariseD. abide60. The illness from which Mary is suffering has now been _____ ashepatitis (肝炎).A. diagnosedB. determinedC. deducedD. discoveredPart Ⅲ Cloze(20points,1 point for each)Directions: Choose the best answer from the four choices given.There are about fifteen hundred languages in the world. But 61 a few of them are very 62 . English is one of these. Many, many people use it, not only in England and the U.S.A., but in other parts of the world. About 200,000,000 speak it as their own language. It is difficult to say how many people are learning it as a 63 language. Many millions are 64 to do so. Is it easy or difficult to learn English? Different people may have different 65 . Have you ever 66 ads( 广告) of this kind in the newspapers or magazines? "Learn English in six weeks, or your 67 back..." "Easy and funny! Our records and tapes 68 you master your English in a month. 69 the first day your 70 will be excellent. Just send ... " Of course, it never 71 quite like this.The only language that seems easy to learn is the mother tongue. We should 72 that we all learned our own language well when we were 73 . If we could learn English in the same way, it would not seem soit, 75 in it all the time. Just imagine how much 76 that gets! command practice needs greatwork for him.64. A. learning B. enjoying C. trying D. liking65. A. questions B. problems C. ideas D. answers66. A. found B. watched C. noticed D. known67. A. knowledge B. time C. money D. English68. A. make B. help C. let D. allow69. A. From B. On C. Since D. After70. A. spelling B. grammar C. English D. pronunciation71. A. happened B. looked C. seemed D. felt72. A. know B. remember C. understand D. think73. A. students B. children C. babies D. grown-ups74. A. Imagine B. Mind C. Do D. Think of75. A. using B. thinking C. trying D. practicing76. A. time B. money C. language D. practice77. A. hard B. easy C. funny D. silly78. A. depends B. tries C. has D. takes79. A. uses B. takes C. gets D. costs80. A. do B. work C. help D. master、Part Ⅳ Reading Comprehension (20points,1 point for each) Directions: In this section, there are four passages followed by questions or unfinished statements, each with four suggested answers A, B, C and D. Choose the best answer and mark your answer on the Answer SheetPassage OneThere are only three important days in everyone's life and two of them are the ones that you don't need to worry about. Serigne Fallou Mbacke, a sage and man of God, who lived in Senegal (West Africa) between 1888 and 1968, used to say, "The day is today, it is the only day, the past is gone and will never come back and the future belongs to God. "Harriet Beecher Stowe, 1811-1896, author of Uncle Tom's Cabin, once said almost the same thing, "The past, the present, and the future are really one: they are today."We all know that many people spend one half of their days regretting for the past, and the other half worrying about the future, leaving no time to enjoy the present when everything happens. How can such people get ahead in life? People all over the world have made countless discussions on the subject but it does not seem to make a difference. Most of us are still everywhere but in the present.As the saying goes, if you do what everybody does, you will get what everybody gets! Make a difference, and live in the present. It will help you achieve more, become a better person and live a happier life, a life without anxieties or worries.Today is all you have. There is no guarantee that you will live to see tomorrow and there is not a thing you can change about the past. Motivational speaker and author, Dennis Waitley puts it so beautifully in one of his books:The past is a cancelled check, the future is a promissory note(期票), but the present, the present is liquid cash.Always remember that today is a gift and that is the reason why it is called the present.81. Which of the following statements is NOT true?A. The future belongs to God.B. No one can change the past.C. Living in today will help you achieve more.D. We are sure that we will live to see tomorrow.82. Who described the three important days as "check, note and cash"?A. The writer.B. Serigne Fallou Mbacke.C. Harriet Beecher Stowe.D. Dennis Waitley.83. Why is today called the present according to the passage?A. Because today is a gift.B. Because people are always worrying about today.C. Because people are always' worrying about the future.D. Because people have made countless discussio ns on thesubject.84. Whic h of the following words can best describe the author's attitude towards "today"?A. Unconcerned.B. Negative.C. Favorable.D. Doubtful.85. What would be the best title for the passage?A. Can you make a difference?B. Are you wasting today?[来源:]C. Do you worry about the past?D. Are you worrying about the future?Passage TwoThere are three kinds of goals: short-term,medium-range and long-term goals.Short-range goals are those that usually deal with current activities,which we can apply on a daily basis.Such goals can be achieved in a week or less,or two weeks,or possible months.It should be remembered that just as a building is no stronger than its foundation ,out long-term goals cannot amount to very munch without the achievement of solid short-term goals.Upon completing our short-term goals,we should date the occasion and then add new short-term goals that will build on those that have been completed.The intermediate goals bukld on the foundation of the short-range goals.They might deal with just one term of school or the entire school year,or they could even extend for several years.Any time you move a step at a time,you should never allow yourself to become discouraged or overwhelmed. As you complete each step,you will enforce the belief in your ability to grow adn succeed.And as your list of completion dates grow,your motivation and desire will increase.Long-range goals may be related to our dreams of the future. They might cover five years or more. Life is not a static thing.We should never allowa long-term goal to limit us or our course of action.86.Our long-term goals mean a lot__.A.if we complete our short-range goalsB.if we cannot reach solid short-term goalsC.if we write down the datesD.if we put forward some plans87.New short-term goals are bulid upon__.A.two yearsB.long-term goalsC.current activitiesD.the goals that have been completed88.When we complete each step of our goals ,__.A.we will win final successB.we are overwhelmedC.we should build up confidence of successD.we should strong desire for setting new goals89.Once our goals are drawn up,__.A.we should stick to them until we complete themB.we may change our goals as we have new ideas and opportunitiesC.we had better wait for the exciting news of successD.we have made great decision90.It is implied but not stated in the passage that ___.A.those who habe long-term goals will succeedB.writing down the dates may discourage youC.the goal is only a guide for us to reach our desinationD.every should have a goalPassage ThreeThe economy of the United states after 1952 was the econnomy of a well-fed,almost fully employed people. Despit occasional alarms, the country escaped any postwar depression and lived in a state of boom. A n economic survey of the year 1955, a typical ye ar of the 1950’s, may be typical as illustrating the rapid economic growth of the decade. The national output was value at 10 percent above that of 1954 (1955 output was estimated at 392 billion dollars). The production of manufacturers was about 40 percent more than it had averaged in the years immediately following World War 2. The country’s business spent about 30billion dollars for new factories and machinery. National income available for spending was almost a third greater than it had been it had been in 1950. Consumers spent about 256 billion dollars; that is about 700 million dollars a day ,or about twenty-five million dollars every hour , all round the clock. Sixty-five million people held jobs and only a little more than two million wanted jobs but could not find them . Only agriculture complained that it was not sharing in the room. To some observers this was an ominous echo of the mid-1920’s . As farmer’s shre of their products declined , marketing costs rose. But there were , among the observers of the national economy, a few who were not as confident as the majority . Those few seemed to fear that the boom could not last and would eventually lead to the oppsite-depression.91. What is the best title of the passage?A. The Agriculatural Trends of 1950’sB. The Unemployment Rate of 1950’sC. U.S. Economy in the 50’sD. The Federal Budget of 195292. In Line 4 , the word “boom” could best be replaced by______.A. nearby explosionB. thunderous noiseC. general public supportD. rapid economic growth93. It can be inferred the national from the passage that most people in the United States in 1955 viewed the national economy with an air of _________.A. confidenceB. confusionC. disappointmentD. suspicion94. Which of the following were LEAST satisfied with the national economy in the 1950’s?A. EconomistsB. FrmaersC. PoliticiansD. Steelworkers95. The passage states that incom available for spending in the U.S. was greater in 1955 than in 1950 . How much was it ?A. 60%B. 50%C. 33%D. 90%Passage FourWomen are also underrepresented in the administration and this is because there are so few women full professors. In 1985,Regent Beryl Milburn produced a report blasting the University of Texas System adminitration for not encouraging women.The University was rated among the lowest for the system.In a 1987 update ,Milburn commended the progress that was made and called for even more improvement.One of the positive results from her study was a System-wide program to inform women of available administrative jobs.College of Communication Associate Dean Patrica Witherspoon,said it is important that woman be flexible when it comesto relocating if they want to rise in the ranks.Although a woman may face a chilly climate on campus , many times in order for her to succeed , she must rise above the problems around her and concentrate on her work.Until women make up a greater percentage of the senior positions in the University and all academia,inequities will exist."Women need to spend their energies and time doing scholarly activities that are important here at the University." Spirduso said. "If they do that will be successful in this system.If they spend their time in little groups mourning the sexual discrimination that they think exists here, they are wasting valuable study time."96.According to Spirduso,women need to ____.A.produce a report on sexual discriminationB.call for further improvement in their working conditionsC.spend their energies and time fighting against sexualdiscrimiationD.spend more time and energy doing scholarly activities97.From this passage ,we know that _____.A.there are many women full professors in the University of TexasB.women play an important part in adminitrating the UniversityC.the weather on the campus is chillyD.women make up a small percentage of the senior positions in theUniversity98.Which of the following statements is true?A.the number of women professors in the University in 1987 wasgreater than that of 1985B.the number of women professors in the University in 1987 wassmaller than that of 1985C.the number of women professors was the same as that of 1985D.more and more women professors thought that sexualdiscrimination did exit in the University99.One of the positive results from Milburn's study was that _____.A.women were told to con centrate on teir workB.women were given information about available administrativejobsC.women were encouraged to take on all the administrative jobsin the UnversityD.women were encouraged to do more scholarly activities100. The title for this passage should be _______.A.The University of Texasburn's ReportC.Women ProfessorsD.Sexual Discrimination in Academia2015年河北大学硕士研究生复试英语答案1-5 ACBDC 6-10 ABABD 11-15 BCCDA 16-20 ADBCB 21-25 CDCCB 26-30 CBBAC 31-35 DCCAA36-40 BCDBC 41-45 BDCAD 46-50 DAAAD51-55 BDDBB 56-60 DAACA 61-65 CBBCD66-70 CCBAD 71-75 ABBDB 76-80 DAABC81-85 DDACB 86-90 ADCBC 91-95 CDABC96-100 DDABD。
河北省信息技术学业水平考试试题
【xkit-1】王明收到同学聚会的请柬时，同学聚会己经结束，王明因此错过了相聚的时间而没能见到同学。
这件事情主要体现了信息具有(D)。
A.共享性B.真伪性C.载体依附性D.时效性【xkit-2】关于信息的鉴别与评价，下列叙述正确的是(C)。
A.因特网给我们带来了大量的信息，这些信息都是可信的，可以直接使用B.在因特网上，通过搜索引擎查找到的信息都是最新的C.信息源越广，收集到的信息量越大，信息源越可靠，收集到的信息可信度越大D.同一信息在不同的时候价值都是一样的【xkit-3】人类生活离不开信息，下列关于信息的说法错误的是（D）A.信息是人类社会的重要资源B.信息可以通过感官来获取C.计算机可以处理信息D.一条信息使用的人越多越贬值【xkit-4】从信息的特征来看，下列说法错误的是 (D)。
A.信息不能独立存在，需要依附于一定的载体B.信息可以转换成不同的载体形式而被存储和传播C.信息可以被多个信息接受者接受并且多次使用D.同一条信息只能依附于同一个载体【xkit-5】气象台及时发布台风警报，从而避免了大量人员、财物损失。
这体现出信息的（A）A.时效性、有用性B.可存储、可转换C.独立性、增值性D.广泛性、共享性【xkit-6】下面关于信息错误的说法是（C）A.信息离不开载体B.信息是广泛存在的C.信息永不会过时D.共享的人越多，信息的利用价值可能越大【xkit-7】下列属于信息的是（C）A．报纸 B．电视机 C．一段天气预报 D．光盘【xkit-8】下列属于信息的是（C）A.报纸B.电视C.收音机播报的新闻D.因特网【xkit-9】下列属于信息的是（A）A．股市行情 B．电视机 C．书 D．互联网【xkit-10】下面不属于信息表现形式的是（C）A．声音 B．文字 C．书刊 D．图像【xkit-11】下面不属于信息技术典型应用的是（C）A.传感技术B.网络技术C.燃料电池技术D.通信技术【xkit-12】信息活动的几个方面概括为（A）A.收集、加工、存储、传递B.收集、加工、处理、提取C.收集、整理、加工、分析D.收集、处理、提取、整理【xkit-13】信息技术不包括（C）A.计算机技术B.多媒体技术C.机械制造技术D.网络技术【xkit-14】当前计算机向哪两极方向发展（C）A．微型机和小型机 B．微型机和便携机C．微型机和巨型机 D．巨型机和小型机【xkit-15】世界上第一台电子计算机名称是（B）A．Apple B．ENIAC C．Oliver D．Intel【xkit-16】世界上第一台电子计算机诞生于_____年（B）A．1936 B．1946 C．1957 D．1960【xkit-17】世界上第一台电子计算机诞生于哪个国家？（A）A．美国 B．德国 C．英国 D．日本【xkit-18】计算机电子器件的发展顺序是（D）A．晶体管、电子管、集成电路B．集成电路、电子管、晶体管C．电子管、集成电路、晶体管D．电子管、晶体管、集成电路【xkit-19】下列对计算机发展方向的描述中，不正确的是（C）A．网络化 B．智能化C．规格化 D．高度集成化【xkit-20】在计算机上将一份英文学习资料翻译成中文，可以使用（C）软件。
河北大学大二计算机专业计算机信息网络试卷及答案 (2)
河北大学20 -20 学年第 学期《计算机信息网络》期末考试试卷（A 卷）（时间120分钟）开课院/系部： 姓名 学号 .一、单项选择题（每小题2分，共20分）1．计算机网络普遍采用的数据交换方式为： （ C ）A.电路交换B.报文交换C.分组交换D.混合交换2. 从网络的分层模型的角度来看，通信子网的最高层是： （ B ）A.数据链路层B.网络层C.运输层D.应用层3．以太网使用的协议是： （ B ）A.CSMAB.CSMA/CDC.TCP/IPD.IEEE 802.54. 星型以太网常用的传输媒体是： （ A ）A.双绞线B.同轴电缆C.光纤D.微波5. 地址解析协议ARP 的作用是：（ A ）A. 已知IP 地址查找MAC 地址B. 已知MAC 地址查找IPC. 已知域名查找IP 地址D. 已知IP 地址查找域名6. 在运输层提供的标识应用进程的机制是： （ C ）A.IP 地址B.MAC 地址C.端口D.物理地址7. 下列IP 地址中错误的是： （ D ）A. 11.11.11.11B. 111.111.111.111C. 211.211.211.211D. 311.311.311.3118．电子邮件服务器与电子邮件服务器之间使用的协议是： （B ）A.UDPB.SMTPC.ARPD.IMAP9. 浏览器与WEB 服务器之间使用的传输协议是： （ B ）A.HTMLB.HTTPC.FTPD.超连接10.下面属于公开密钥密码体系的是： （ C ）A.替代密码B.置换密码C.RSAD.DES二、简答题（共45分） 1．什么是信道复用技术？常用的信道复用技术有哪几种？（8分）2．在连续ARQ 协议中，若发送序号用5个比特来编码，最大发送窗口为何不能取32？（7分）3．简述虚电路和数据报的区别。
（8分）4．IP 协议和UDP 协议提供的都是不可靠的无连接的服务，简述二者的区别和联系。
（7分）5．简述CSMA/CD 的工作原理。
河北大学大二计算机专业计算机信息网络试卷及答案 (1)
河北大学20 —20 学年第 学期《计算机信息网络》考试试卷（时间120分钟）院/系 专业 姓名 学号一、是非题（请在括号内，正确的划√，错误的划×）（每题2分，共20分）1．所有以太网交换机端口既支持10BASE-T 标准，又支持100BASE-T 标准。
（ F ）2．Ethernet 、Token Ring 与FDDI 是构成虚拟局域网的基础。
（ T ）3．ATM 既可以用于广域网，又可以用于局域网，这是因为它的工作原理与Ethernet 基本上是相同的。
（ F ）4．Windows 操作系统各种版本均适合作网络服务器的基本平台。
（ F ） 5．局域网的安全措施首选防火墙技术。
（ T ） 6．帧中继的设计主要是以广域网互连为目标。
（ T ） 7．应用网关是在应用层实现网络互连的设备。
（ T ）8．双绞线是目前带宽最宽、信号传输衰减最小、抗干扰能力最强的一类传输介质。
（ F ） 9．PPP （Point-to-Point Protocol ，点到点协议）是一种在同步或异步线路上对数据包进行封装的数据链路层协议，早期的家庭拨号上网主要采用SLIP 协议，而现在更多的是用PPP 协议。
（ T ）10．如果多台计算机之间存在着明确的主/从关系，其中一台中心控制计算机可以控制其它连接计算机的开启与关闭，那么这样的多台计算机就构成了一个计算机网络。
（ F ）二、单项选择题（每小题2分，共40分） （请将正确答案填入下表中）A、PANB、LANC、MAND、WAN2.计算机网络中可以共享的资源包括（）A、硬件、软件、数据、通信信道B、主机、外设、软件、通信信道C、硬件、程序、数据、通信信道D、主机、程序、数据、通信信道3.网络协议主要要素为（）A、数据格式、编码、信号电平B、数据格式、控制信息、速度匹配C、语法、语义、同步D、编码、控制信息、同步4.采用专用线路通信时，可以省去的通信阶段是（）A、建立通信线路B、建立数据传输链路C、传送通信控制信号和数据D、双方确认通信结束5.通信系统必须具备的三个基本要素是（）A、终端、电缆、计算机B、信号发生器、通信线路、信号接收设备C、信源、通信媒体、信宿D、终端、通信设施、接收设备6.宽带传输通常使用的速率为（）A、0 － 10Mbit/sB、1 － 2.5Mbit/sC、5 － 10Mbit/sD、0 － 400Mbit/s7.计算机网络通信系统是（）A、电信号传输系统B、文字通信系统C、信号通信系统D、数据通信系统8.网络接口卡的基本功能包括：数据转换、通信服务和（）A、数据传输B、数据缓存C、数据服务D、数据共享9.完成通信线路的设置与拆除的通信设备是（）A、线路控制器B、调制解调器C、通信控制器D、多路复用器10.在星型局域网结构中，连接文件服务器与工作站的设备是（）A、调制解调器B、交换器C、路由器D、集线器11.在OSI七层结构模型中，处于数据链路层与运输层之间的是（）A、物理层B、网络层C、会话层D、表示层12.完成路径选择功能是在OSI模型的（）A、物理层B、数据链路层C、网络层D、运输层13.下列功能中，属于表示层提供的是（）A、交互管理B、透明传输C、死锁处理D、文本压缩14.在TCP/IP协议簇的层次中，解决计算机之间通信问题是在（）A、网络接口层B、网际层C、传输层D、应用层15.对局域网来说，网络控制的核心是（）A、工作站B、网卡C、网络服务器D、网络互连设备16.在中继系统中，中继器处于（）A、物理层B、数据链路层C、网络层D、高层17.各种网络在物理层互连时要求（）A、数据传输率和链路协议都相同B、数据传输率相同，链路协议可不同C、数据传输率可不同，链路协议相同D、数据传输率和链路协议都可不同18.网络管理系统中，管理对象是指（）A、网络系统中各种具体设备B、网络系统中各种具体软件C、网络系统中各类管理人员D、网络系统中具体可以操作的数据19.Intranet技术主要由一系列的组件和技术构成，Intranet的网络协议核心是（）A、ISP/SPXB、PPPC、TCP/IPD、SLIP20.网络管理信息系统的分析设计以（）A、功能模块设计为中心B、数据分析为中心C、系统拓扑结构设计为中心D、系统规模分析为中心三、简答题（每小题5分，共20分）1、将网络协议进行分层有哪些好处？2、作为中间系统，转发器、网桥、路由器和网关有何区别3、UDP协议有何优点？4、计算机网络安全的内容包含哪几方面？四、应用题（每小题10分，共20分）1、IP 地址为192.72.20.111，属A 、B 、C 哪类地址？子网掩码选为255.255.255.224，是否有效？有效的IP 地址范围是什么？2. 设某路由器建立了如下的路由表，现在收到5个待转发的分组，其目的站IP 地址分别是： （1）130.138.139.130 （2）130.138.139.161 （3）130.138.139.200 （4）130.138.139.8（5）130.138.139.100分别计算其下一跳。
2015全国统考计算机基础综合考研真题
来源：合工大考研服务站2015考研计算机专业真题一、单项选择题：140小题，每小题2分，共80分。
下列每题给出的四个选项中，只有一个选项符合题目要求。
请在答题卡上将所选项的字母涂黑。
1.已知程序如下：int s(int n){return(n<=0)?0:s(n-1)+n;}void main(){cout<<s(1);}程序运行时使用栈来保存调用过程的信息，自栈底到栈顶保存的信息一次对应的是A.main()->S(1)->S(0)B.S(0)->S(1)->main()C.main()->S(0)->S(1)D.S(1)->S(0)->main()2.先序序列为a,b,c,d的不同二叉树的个数是A.13B.14C.15D.163.下列选项给出的是从根分别到达两个叶节点路径上的权值序列，能属于同一棵哈夫曼树的是A.24，10，5和24，10，7B.24，10，5和24，12，7C.24，10，10和24，14，11D.24，10，5和24，14，64.现在有一颗无重复关键字的平衡二叉树(AVL树),对其进行中序遍历可得到一个降序序列。
下列关于该平衡二叉树的叙述中，正确的是A.根节点的度一定为2B.树中最小元素一定是叶节点C.最后插入的元素一定是叶节点D.树中最大元素一定是无左子树5.设有向图G=(V,E)，顶点集V={V0,V1,V2,V3}，边集E={,,，},若从顶点V0开始对图进行深度优先遍历，则可能得到的不同遍历序列个数是A.2B.3C.4D.56.求下面带权图的最小(代价)生成树时，可能是克鲁斯卡(kruskal)算法第二次选中但不是普里姆(Prim)算法(从V4开始)第2次选中的边是A.(V1,V3)B.(V1,V4)C.(V2,V3)D.(V3,V4)7.下列选项中，不能构成折半查找中关键字比较序列的是A.500，200，450，180B.500，450，200，180C.180，500，200，450D.180，200，500，4508.已知字符串S为“abaabaabacacaabaabcc”.模式串t为“abaabc”,采用KMP算法进行匹配，第一次出现“失配”(s[i]!=t[i])时，i=j=5,则下次开始匹配时，i和j的值分别是A.i=1，j=0B.i=5，j=0C.i=5，j=2D.i=6，j=29.下列排序算法中元素的移动次数和关键字的初始排列次序无关的是A.直接插入排序B.起泡排序C.基数排序D.快速排序10.已知小根堆为8，15，10，21，34，16，12，删除关键字8之后需重建堆，在此过程中，关键字之间的比较数是A.1B.2C.3D.411.希尔排序的组内排序采用的是()A.直接插入排序B.折半插入排序C.快速排序D.归并排序12.计算机硬件能够直接执行的是()Ⅰ.机器语言程序Ⅱ.汇编语言程序Ⅲ.硬件描述语言程序A.仅ⅠB.仅ⅠⅡC.仅ⅠⅢD.ⅠⅡⅢ13.由3个“1”和5个“0”组成的8位二进制补码，能表示的最小整数是()A.-126B.-125C.-32D.-314.下列有关浮点数加减运算的叙述中，正确的是()Ⅰ.对阶操作不会引起阶码上溢或下溢Ⅱ.右规和尾数舍入都可能引起阶码上溢Ⅲ.左规时可能引起阶码下溢Ⅳ.尾数溢出时结果不一定溢出A.仅ⅡⅢB.仅ⅠⅡⅣC.仅ⅠⅢⅣD.ⅠⅡⅢⅣ15.假定主存地址为32位，按字节编址，主存和Cache之间采用直接映射方式，主存块大小为4个字，每字32位，采用回写(Write Back)方式，则能存放4K字数据的Cache 的总容量的位数至少是()A.146kB.147KC.148KD.158K16.假定编译器将赋值语句“x=x+3;”转换为指令”add xaddt,3”，其中xaddt是x对应的存储单元地址，若执行该指令的计算机采用页式虚拟存储管理方式，并配有相应的TLB，且Cache使用直写(Write Through)方式，则完成该指令功能需要访问主存的次数至少是()A.0B.1C.2D.317.下列存储器中，在工作期间需要周期性刷新的是()A.SRAMB.SDRAMC.ROMD.FLASH18.某计算机使用4体交叉存储器，假定在存储器总线上出现的主存地址(十进制)序列为8005，8006，8007，8008，8001，8002，8003，8004，8000，则可能发生发生缓存冲突的地址对是()A.8004、8008B.8002、8007C.8001、8008D.8000、800419.下列有关总线定时的叙述中，错误的是()A.异步通信方式中，全互锁协议最慢B.异步通信方式中，非互锁协议的可靠性最差C.同步通信方式中，同步时钟信号可由多设备提供D.半同步通信方式中，握手信号的采样由同步时钟控制20.若磁盘转速为7200转/分，平均寻道时间为8ms,每个磁道包含1000个扇区，则访问一个扇区的平均存取时间大约是()A.8.1msB.12.2msC.16.3msD.20.5ms21.在采用中断I/O方式控制打印输出的情况下，CPU和打印控制接口中的I/O端口之间交换的信息不可能是()A.打印字符B.主存地址C.设备状态D.控制命令22.内部异常(内中断)可分为故障(fault)、陷阱(trap)和终止(abort)三类。
2015年北京航空航天大学通信类综合考研、真题解析,复试笔记
北航考研详解与指导921通信类综合包含三门专业课:模电,信号与系统以及电磁场。
其中模电占得分最多是60分,信号和电磁场都是45分,难度最大、最难得分的当然是模电,在我们学校,大家都叫它魔鬼,当初我们专业挂了四分之一的人!足以见其变态程度,幸好北航出的模电题一般都不会特别的难,但是你想不失分那是不可能的。
北航921专业课的考试大纲已经说了这几门课所使用的教材:模电:1.张凤言编著,电子电路基础(第二版,高等教育出版社;2.模拟集成电路的分析与设计,P.R.Gray等著,张晓林等译,高等教育出版社,2005年6月;3.童诗白主编,模拟电子技术基础(第四版,高等教育出版社其中张凤言老师的那本是北航本校的教材,外面基本没的卖,我辗转终于买到一本,但是里面的内容实在是太多太繁杂,非一般人能接受的,特别是在考研时间如此紧迫的情况下,如果能弄到一本的话,看看其中波特图的章节就行了,其他的部分看童诗白老师的那本书完全就能应对考试。
在这里,我要说一下自己复习时的一些心得吧。
因为波特图是每年的必考题,但是童诗白老师那本书讲的跟张凤言老师讲的是完全不一样的,所以大家最好能看一下张凤言老师的那本书的那个章节,把那个章节的习题做了,考试题有可能就是在里面。
另外,我复习的时候在图书馆借了一本模电的辅导书,我觉得非常好,现在忘了叫什么名字了,等我去图书馆查了再告诉大家,那本书感觉跟北航的要求很相近,其中波特图、反馈电路、放大电路的讲解都非常的好。
信号与系统:1.郑君里,应启珩,杨为理,《信号与系统》,高等教育出版社,2000年5第二版。
2.郑君里,应启珩,杨为理,《信号与系统》,高等教育出版社,第一版。
3.A.V.Oppenheim等著,刘树棠译,《信号与系统》第二版,西安交通大学出版社信号与系统应该说是三门专业课中最简单的一门,也是最好拿分的一门,复习的到位的话,45分全拿到手都很正常。
信号与系统考试题一般是三道大题,信号系统这么多内容,三道大题根本就考不了多少东西,通过我做往年的真题和自己考试的经验来看,最重要的还是那几个变换,傅里叶变换,拉普拉斯变换,Z 变换,时域的,频域的,离散域的都要弄明白,而且要灵活运用,我的建议就是看好郑君里老师的两本书,那两本书写的实在是太经典了,大部分时间你要用来看教材,少部分时间看一些信号系统的考研辅导书,多见一些题型,也要练一些题来培养一下题感。
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