北京邮电大学 第三次阶段作业
北邮大学英语3阶段作业一
一、阅读理解（共1道小题，共50.0分）1. Americans with small families own a small car or a large one. Ifboth parents are working, they usually have two cars. When the familyis large, one of the cars is sold and they will buy a van(住房汽车)A small car can hold four persons and a large car can hold sixpersons but it is very crowded. A van hold seven persons easily, so afamily with three children could ask their grandparents to go on aholiday travel. They could all travel together.Mr. Hagen and his wife had a third child last year. This made them sell a second car and buy a van. The sixth and seventh seat are used to put other things, for a family of five must carry many suitcases whenthey travel.Americans call vans motor homes. A motor home is always used forholidays. When a family are traveling to the mountains or to theseaside, they can live in their motor home for a few days or weeks. Allthe members of a big family can enjoy a happier life when they aretraveling together. That is why motor homes have become very popular.In America there are many parks for motor homes.1. From the passage, a motor home is also called ______.A. a motor carB. a motorbikeC. a big truckD. a van2. A family owns a motor home usually with ______.A. more than two childrenB. interest in vansC. a babyD. much money3. Americans with a small family and with two parents working usuallyhave ______.A. a carB. two carsC. two vansD. a van4. What is the main use of motor homes for Americans?A. to do some shopping with all the family membersB. to drive their children to school every dayC. to travel with all the family members for holidaysD. to visit their grandparents at weekends5. The reason why motor homes have become popular is that _______.A. they can let families have a happier life when they go out for theirholidaysB. they can take people to another city when people are freeC. big families can put more things in motor homesD. some people think motor homes are cheep1. 1. From the passage, a motor home is also called ______.A. a motor carB. a motorbikeC. a big truckD. a van2. 2. A family owns a motor home usually with ______.A. more than two childrenB. interest in vansC. a babyD. much money3. 3. Americans with a small family and with two parents workingusually have ______.A. a carB. two carsC. two vansD. a van4. 4. What is the main use of motor homes for Americans?A. to do some shopping with all the family membersB. to drive their children to school every dayC. to travel with all the family members for holidaysD. to visit their grandparents at weekends5. 5. The reason why motor homes have become popular is that_______.A. they can let families have a happier life when they go outfor their holidaysB. they can take people to another city when people are freeC. big families can put more things in motor homesD. some people think motor homes are cheep试题分值：50.0得分：[10, 10, 10, 10, 10]提示：1. 细节题。
北邮现代通信网三次作业
北邮现代通信网三次作业第一次1.树去掉一条边仍是连通的。
A.正确B.错误2.基干路由上的话务量一般不允许溢出。
A.正确B.错误3.电话网的等级结构的级数只取决于全网的经济性。
A.正确B.错误4.交换区域一定时，网的总费用随局所数目的增加而增加。
A.正确B.错误5.最终路由上的话务量允许溢出。
A.正确B.错误6.只有连通图才有支撑树，反之有支撑树的图必为连通图。
A.正确B.错误7.我国五级电话网采用固定分级选路方式。
A.正确B.错误8.树的任意两点之间只有一条路径。
A.正确B.错误9.全覆盖结构的本地网中，两端局间的用户通话最多经一次转接。
A.正确B.错误10.无级选路结构即无级网。
A.正确B.错误11.电话网中若呼损大，则接续质量就差。
A.正确B.错误1.具有个6个点10条边的连通图中的连枝数为A. 4B. 5C. 6D.72.下面关于树的性质的描述中，不正确的是A.具有n个点的树共有n-1个树枝B.树中任意两点间存在多条路径C.树是连通的，去掉任一条边便不连通D.除单点树外，树至少有两个端点度数为13.下面描述的是网的费用L与局所数目m的关系，不正确的是A.用户线的费用随m的增加而下降B.中继线的费用随m的增加而增加C.交换设备的费用随m的增加而增加D.网的总费用随m的增加而增加4.在我国长途网由四级向二级过渡的时期，采用的选路方式为A.固定无级选路方式B.动态无级选路方式C.固定有级选路方式D.动态有级选路方式5.我国在二级长途网将采用的选路方式为A.固定无级选路方式B.动态无级选路方式C.固定有级选路方式D.动态有级选路方式6.响度可以用来衡量电话通信网的A.接续质量B.传输质量C.稳定质量D.以上都不是7.失效率可以用来衡量电话通信网的A.接续质量B.传输质量C.稳定质量D.以上都不是8.话务量允许溢出的路由为A.低呼损直达路由B.高效直达路由C.基干路由D.A和C9.通信网的下列基本结构中稳定性最好的是A.网形网B.复合形网C.环形网D.树形网第二次1.BGP-4属于外部网关协议。
北邮现代交换技术阶段作业答案
一、单项选择题（共10道小题，共100.0分）1. (错误)TST数字交换网络，初级T入线复用度512，A-B方向选取的内部时隙为TS325，B-A方向内部时隙按相差半帧原则选择，应选择的时隙为（）。
A. TS512B. TS325C. TS69D. TS632. (错误)设S接线器在输出控制方式下工作，如果要将S接线器的输入复用线HW3的时隙23的内容A交换到输出复用线HW5的同一时隙，则计算机应将控制存储器组CM5的23号单元的内容置为（）。
A. 1B. 3C. 5D. A3. (错误)T接线器采用输入控制方式时，如果要将T接线器的输入复用线时隙125的内容A交换到输出复用线的时隙28，则A应写入话音存储器的（）号单元。
A. 123B. 28C. 21D. 224. (错误)T接线器的输出控制方式是指（）。
A. T接线器的SM按控制写入，顺序读出方式工作B. T接线器的CM按控制写入，顺序读出方式工作C. T接线器的SM按顺序写入，控制读出方式工作D. T接线器的CM按顺序写入，控制读出方式工作5. (错误)ISUP消息的内容是在( )。
A. SCCP消息中传送B. MSU的SIF中传送C. TCAP消息中传送D. 在LSSU中传送6.在64kb/s的信令链路上传输时，信令单元为消息信令单元, 消息信令单元的SIF和SIO字段的长度为200字节，此时信令单元中的长度表示语LI=( )。
A. 0B. 1～2C. 63D. 63以上7.8. (错误)TUP和ISUP应配置于（）。
A. 独立型HSTPB. 独立型STPC. 网管中心D. 市话终端局9. (错误)信令点中信令单元的差错检测功能是在（）完成的。
A. 信令数据链路级B. 事务处理应用部分C. 信令网功能D. 信令链路级10. (错误)当局间采用数字型线路信令时，第10帧（F10）的TSl6传送（）的线路信令。
A. 话路9和话路26B. 话路10和话路26C. 话路9和话路25D. 话路10和话路2511. (错误)在两个长途交换中心之间选择路由时，最后才选择（）。
北邮大学英语3第三阶段作业
北邮大学英语3第三阶段作业1.2.3.rescue.A BC DA.AB.BC.CD.D知识点:Identification1学生答案:[B;] 标准答案: B得分:[5] 试题分值: 5.0提示: 答案：B.改为fall。
动词see可以组成see sb. do sth.的词组，意思是“看到某人做了某事”。
本句大意是“看到男孩掉进了河里，她立刻站起来去营救。
”4.Let's hurry up and try to get to the railway station in time, can we?A BC DA.AB.BC.CD.D知识点:Identification1学生答案:[D;] 标准答案: D 得分: [5] 试题分值: 5.0提示: 答案：D.改为will you 。
Let’s 引导的祈使句，后面的反意疑问应该用will you 。
本句大意是“让我们赶紧动身尽快赶到火车站，好吗？”二、阅读理解（共1道小题，共50.0分）1. (错误)Seven weeks after the powerful 8.0 earthquake claimed more than 70,000 lives in China, Gail McGovern, the new president and CEO of the American Red Cross is in China seeing the needs of the survivors.“The purpose of this trip is to build bridges and to ha ve an opening for a dialogue with the people of China,” McGovern said. “Just to tell them how important China is to our country and how much we want to help the people of China.”McGovern and David Meltzer, senior vice president ofInternational Services for the American Red Cross, along several other humanitarian organizations and leaders of corporations �C such as Procter and Gamble, Honeywell, Cisco, Chevron and Johnson & Johnson― traveled to China at the invitation of the U.S. Government’s Agency for Int ernational Development (USAID)On Monday in city of Yingxiu, they talked to students and teachers who survived the collapse of their schools during the quake.“By far the most heartbreaking, emotional sight that I saw was at the primary school where one young girl described the terror and what happened,” McGovern said. “She described losing her brother and losing her friend and the sounds; that was really the moment that it hit me: This isn’t just looking at construction, it’s looking at broken lives.”The American Red Cross has committed $20 million to help the earthquake survivors recover and sent two relief experts to the affected area. Later this week, another relief worker will be heading to China to work with the Red Cross Society in China to support longer-term recovery efforts and help determine additional needs.Although the recovery is fading from the headlines, greatneeds still remain. Even though McGovern has only been in her new position two weeks, she says meeting these survivors has reaffirmed her commitment to the organization.（共302字）1. What is the passage mainly about?A. the earthquake in ChinaB. the new president and CEO of the American Red CrossC. the visit of the leader of the American Red Cross to theearthquake-affected area in ChinaD. survivors in the earthquake which hit China2. What is the purpose of McGovern’s visit to China?A. to show that she was the new leader of the American Red CrossB. to build some bridges for the earthquake-stricken area inChinaC. to do business with ChinaD. to provide some help to the survivors in the earthquake3. Which of the following did not come to China with McGovern?A. people from some humanitarian organizationsB. leaders of some American companiesC. David MeltzerD. Johnson4. What impressed McGovern most during her visit?A. students and teachersB. what a primary school girl told herC. the collapse of buildingsD. the sounds of the earthquake5. According to the passage, which of the following statements is nottrue?A. McGovern came to China several weeks after the earthquakehappened.B. The American Red Cross had already provided help to thesurvivors.C. The Chinese government invited McGovern to China.D. The earthquake recovery appeared less in the headlines.1.1. What is the passage mainly about?A.the earthquake in ChinaB.the new president and CEO of the American Red CrossC.the visit of the leader of the American Red Cross tothe earthquake-affected area in ChinaD.survivors in the earthquake which hit China2.2. What is the pur pose of McGovern’s visit to China?A.to show that she was the new leader of the AmericanRed CrossB.to build some bridges for the earthquake-stricken areain ChinaC.to do business with ChinaD.to provide some help to the survivors in the earthquake3.3. Which of the following did not come to China with McGovern?A.people from some humanitarian organizationsB.leaders of some American companiesC.David MeltzerD.Johnson4.4. What impressed McGovern most during her visit?A.students and teachersB.what a primary school girl told herC.the collapse of buildingsD.the sounds of the earthquake5.5. According to the passage, which of the followingstatements is not true?A.McGovern came to China several weeks after theearthquake happened.B.The American Red Cross had already provided help tothe survivors.C.The Chinese government invited McGovern to China.D.The earthquake recovery appeared less in theheadlines.试题分值：50.0得分：[10, 10, 10, 10, 0]提示：1. 本题问“本文主要内容是关于什么的？”这是中心思想题，一般来说我们可以通过阅读每段的第一句和最后一句来得到答案。
北邮数据通信阶段作业三
一、判断题（共10道小题，共50.0分）
1、虚电路与逻辑信道的概念相同。
1. 正确
2. 错误
2
1. 正确
2. 错误
3
1. 正确
2. 错误
4
1. 正确
2. 错误
5
1. 正确
2. 错误
6
1. 正确
2. 错误
7
1. 正确
2. 错误
8
1. 正确
2. 错误
9
1. 正确
2. 错误
1. 正确
2. 错误
二、单项选择题（共10道小题，共50.0分）
1、帧中继发展的必要条件有
传输效率高
光纤传输线路的使用和用户终端的智能化
网络时延小
有效的带宽利用率
2
电路交换
报文交换
分组交换
帧中继
3
64字节
128字节
118～125字节
1024字节
4
物理层
数据链路层
网络层
物理层和数据链路层
5
1
2
3
4
6
平衡型和不平衡型两种
平衡型和对称型两种
不平衡型和对称型两种
平衡型、不平衡型和对称型三种
7
一级交换中心
两级交换中心
三级交换中心
四级交换中心
8
一层
二层
三层
四层
9
X.3建议
X.28建议
X.29建议
X.75建议
X.20 X.21 V.24 V.28。
北邮网院 大学英语3-阶段作业1
标准答案: B 试题分值: 10.0
18.
We must strengthen our________ on the western border.
19. 1. 2. 3. 4.
知识点: defences defects defeats defendants 阶段作业一 标准答案: A 试题分值: 10.0
学生答案: [A;] 得分: [10]
3.
In a time of social reform, people's state of mind tends to keep ________ with the rapid changes of society.
4. 1. 2. 3. 4.
知识点: step progress pace touch 阶段作业一 标准答案: C 试题分值: 10.0
学生答案: [D;] 得分: [10]
14.
The manager thought he was a________ person and told him all about the new plan.
15. 1. 2. 3. 4.
知识点: confident famous reliable dependent 阶段作业一 标准答案: C 试题分值: 10.0
一、单项选择题（共 10 道小题，共 100.0 分）
1.
I prefer to work in an ___________ environment where there are good libraries and cultural facilities.
2. 1. 2. 3. 4.
知识点:
urban rural suburb area 阶段作业一 标准答案: A 试题分值: 10.0
北京邮电大学 第三次阶段作业.doc
一、阅读理解（共1道小题，共25.0分）1. A pretty, well―dressed young lady stopped a taxi in a big square, and a said to the driver,"Do you see that young man at the other side of the square?""Yes," said the taxi driver. The young man was standing outside a restaurant and looking impatiently (不耐烦地) at his watch every few seconds."Take me over there," said the young lady.There were a lot of cars and buses in the square, so the taxi driver asked, "Are you afraid to cross the street?""Oh, no!" said the young lady. "But I promised that I would meet the young man for lunch at one o' clock, and it is now a quarter to two. If I arrive in a taxi, it will at least seem as if I had tried not to be late."1. How did the young woman get to the square?A. She arrived in a taxi.B. She drove there in a car.C. She got there by bus.D. The story doesn't tell us.2. Why did the lady stop the taxi?A. Because she didn't want to be late for her appointment (约会).B. Because she wanted to get out of the taxi.C. Because she wanted to go to the restaurant in it.D. Because she was afraid of walking across the street.3. The young man at the other side of the square_______.A. had probably been waiting for a long timeB. had some problem with his watchC. was probably a waiter of the restaurantD. was someone the young lady didn't want to see4. The young lady was_______.A. clever at making excuseB. not late at allC. 45 minutes earlierD. 15 minutes late5. Had she tried not to be late?A. Yes, she had tried her best.B. No, she was just pretending that she had tried.C. Yes, she had tried but she was still late.D. No, she thought being late was better than being early.试题分值：25.0。
北邮网校-大学英语3-阶段作业3
阶段作业三
学生答案:
[]
标准答案:
C
得分:
[0]
试题分值:
10.0
15.
(错误)
16.
She likes_________ literature and music.
17.
1.domestic
2.feature
3.existence
4.classical
知识点:
阶段作业三
学生答案:
[]
标准答案:
4.
1.peak
2.hill
3.cliff
4.weight
知识点:
阶段作业三
学生答案:
[A;]
标准答案:
A
得分:
[10]
试题分值:
10.0
5.
John always agrees to what she says, __________ she is right _______ wrong.
6.
1.both…and
4.hospitable
知识点:
阶段作业三
学生答案:
[A;]
标准答案:
A
得分:
[10]
试题分值:
10.0
知识点:
阶段作业三
学生答案:
[D;]
标准答案:
D
得分:
[10]
试题分值:
10.0
5.
She likes_________ literature and music.
6.
1.domestic
2.feature
3.existence
4.classical
知识点:
阶段作业三
16秋北邮大学英语3阶段作业
一、单项选择题(共9道小题,共9０、0分)1.下面关于Ｊava 得理解错误得就是( )。
A.Jａva 就是一个面向对象、平台独立、多线程、动态得编程环境B.Jａva就是一个完整得计算平台,包括完整得程序开发环境与运行环境C.Jａva 就是一个通用得编程环境,使用它可以开发完成各种计算任务得通用程序D.Javａ就是一个Web程序开发与运行环境,使用它只能开发Ｗｅb 应用程序知识点:阶段作业一学生答案: [D;]标准答案:D得分: [10] 试题分值:10、02.（错误)下面不就是包得用途得就是( A )A.规定一组类得对外界面B.防止命名冲突C.访问控制D.方便类得查找与使用知识点:阶段作业一学生答案: [D;]标准答案:A得分: [0] 试题分值:10、03.在Javａ中，用Ｐａckage语句说明一个包时,该包得层次结构必须就是( ）A.与文件得结构相同B.与文件目录得层次相同C.与文件类型相同D.与文件大小相同知识点:阶段作业一答案: [B;]答案:B得分: [10] 试题分值:10、04.关于Ecliｐse透视图说法错误得就是（)A.每个透视图都定义了工作台中各个视图得初始设置与布局B.一个工作台窗口包含多个独立得透视图，但同一时刻只有一个透视图就是对用户可见得C.每个透视图都有自己得视图与编辑器，用户可以在各个透视图间切换D.透视图得布局就是可以改变得，但改变多次后无法再恢复到初始设置知识点:阶段作业一学生答案: [D;]标准答案:D得分: [10] 试题分值:10、05.(错误)关于Ｅｃｌipse工作空间说法错误得就是( C ）A.它就是用户计算机磁盘上划出得一块区域,用来存放用户得工作资料B.它以项目为单位组织文件与目录C.它将各种资源组织成树形结构,文件夹位于树得根部,项目位于树枝位置D.用户对工作空间得每次操作都能在Eclｉpsｅ集成环境中得到同步知识点:阶段作业一学生答案: [B;]标准答案:C得分: [0] 试题分值:10、06.在Ecliｐse中开发JAＶA程序得步骤不包括( ）A.创建一个Jaｖa项目B.手动创建Jaｖa源程序C.手工运行ＪDK命令D.运行Ｊaｖa程序知识点:阶段作业一答案: [C;]答案:C得分: [10] 试题分值:10、07.下面叙述中哪个就是正确得( )A.当编译Javａ程序时,源程序中得每个类都将被分别编译成不同得文件,每个文件名都与所对应得类名相同，并以扩展名clａss结束B.当编译Ｊａｖa程序时,源程序中得每个类都将被分别编译成不同得文件，每个文件名都与所对应得类名相同，并以扩展名javａx结束C.当编译Java程序时,源程序中得所有类都将被编译到同一个文件中，文件名与主类得类名相同,并以扩展名clａss结束D.当编译Ｊava程序时,源程序中得所有类都将被编译到同一个文件中，文件名与主类得类名相同,并以扩展名javax结束知识点:阶段作业一学生答案: [A;]标准答案:A得分: [10] 试题分值:10、08.下面关于Jaｖa 得理解错误得就是（）A.Ｊava 就是一个面向对象、平台独立、多线程、动态得编程环境B.Java 就是一个完整得计算平台，包括完整得程序开发环境与运行环境C.Ｊaｖa 就是一个通用得编程环境,使用它可以开发完成各种计算任务得通用程序D.Jａｖa 就是一个Weｂ程序开发与运行环境，使用它只能开发Ｗeb 应用程序知识点:阶段作业一学生答案: [D;]标准答案:D得分: [10] 试题分值:10、09.冯·诺依曼计算机中指令与数据均以二进制形式存放在存储器中，CPＵ区分它们得依据就是( ）A.指令操作码得译码结果B.指令与数据得寻址方式C.指令周期得不同阶段D.指令与数据所在得存储单元知识点:阶段作业一学生答案: [C;]标准答案:C得分: [10] 试题分值:10、0一、单项选择题(共1０道小题,共１00、０分)1.下面关于“回调”得说法错误得就是( )A.“回调”就是一种程序设计模式，而不就是Jａｖa得专门语法规则B.通过回调,对象被赋予一些信息，这些信息允许它在稍后得某个时刻返回头去调用初始对象C.Ｊava通过指针实现回调D.Jａvａ通过接口实现回调知识点:阶段作业二学生答案: [C;]标准答案:C得分: [10] 试题分值:10、02.设有如下程序ｐublic clａｓs Try２{pｕｂｌｉc ｓtatic ｖｏiｄmain（Strｉnｇ[] arｇｓ) { Ｃirclｅ c = nｅw Cｉrｃle(2);System、oｕt、ｐrinｔlｎ(c、getAｒea()）；｝}intｅrface IＳｈape {doｕble PI ＝ 3、1４；dｏublｅｇetAreａ()；}clａsｓ Ciｒｃle impｌｅmｅnts ISｈape ｛prｉvａte doｕｂlｅｒａｄius;Circｌe（doｕble rａdｉuｓ) {thiｓ、radiｕs ＝ rａｄiuｓ;}public double getＡrea（) {return (PI * radius * raｄius)；}}则下面说法正确得就是（)A.编译时发生错误B.运行时发生错误C.输出为12、5６D.输出为0知识点:阶段作业二学生答案: [C;]标准答案:C得分: [10] 试题分值:10、03.设有如下程序public claｓｓ Try2 ｛public stａtic vｏid main(Striｎｇ［］ａrgs) {Ｂｏbjb ＝ (Ｂ） nｅｗ A(）；ｏｂｊb、shｏw(）;}}clａss A {ｖoid show(）｛Syｓｔeｍ、out、ｐｒintln(＂a”)；}｝claｓs B extｅnds A ｛ voｉd show（）{ Ｓystem、oｕt、ｐrｉnt ｌn（"ｂ");｝}则下面说法正确得就是( )A.编译时发生错误B.运行时发生错误C.输出为aD.输出为b知识点:阶段作业二学生答案: [B;]标准答案:B得分: [10] 试题分值:10、04.有如下代码段clａss CＯuter {int x = 10；ｖoid ｓｈｏwA（）｛Sｙsｔem、oｕｔ、prｉntln(x）；｝void prｉｎt() {（ｎew CInner())、ｓhｏwB（）；}ｃｌａss CInner {int x = 20；ｖoid showB（) {Sysｔeｍ、oｕt、prinｔln(x）;}}｝pubｌic class Ｔry2 ｛pｕbｌic sｔatｉｃ void main(Sｔrｉng［] argｓ) { COutｅr o ＝ nｅw ＣOuter();ｏ、pｒｉnt(）;}｝则下面说法正确得就是( )A.编译时发生错误B.运行时发生错误C.输出为２0D.输出为１0知识阶段作业二点:学生[C;] 标准 C答案: 答案:得分: [10] 试题分值:10、05.设有如下程序段clａss Tｅst{prｉvate iｎt m;pubｌiｃstaｔic vｏｉｄ fun()｛//somｅ coｄe…}｝要使成员变量ｍ被函数fun（）直接访问,则下面选项正确得就是( ）A.将pｒivate iｎtｍ改成prｏteｃted inｔmB.将ｐriｖate int m改成public iｎt mC.将private inｔm改成static inｔmD.将priｖatｅiｎt m改成ｉnt m知识点:阶段作业二学生答案: [C;]标准答案:C得分: [10] 试题分值:10、06.（错误)设有如下声明Strinｇ s = ”story";则下面语句哪个就是合法得?( A)A.s += ”ｂoｏks”;B.ｃhar c = s［１]；C.int ｌen = s、ｌengｔh；D.Ｓｔriｎｇｔ= ｓ、sｕbSｔrｉng(１，4);知识点:阶段作业二学生答案: [D;]标准答案:A得分: [0] 试题分值:10、07.Jaｖa 提供了很多系统程序包，编译程序时会自动导入到源程序中得系统包就是( ）A.ｊavａ、apppletB.java、ioC.jaｖa、ｌanｇD.ｊavａ、ｓecuritｙ知识点:阶段作业二学生答案: [C;]标准答案:C得分: [10] 试题分值:10、08.下面关于Jａva程序得类得叙述错误得就是( )A.类就是描述同种对象具有得结构与功能得程序模块B.Jａva 用类来定义对象能够持有得数据与方法得执行效果C.类就就是对象，对象就就是类D.类就是一种数据类型知识点:阶段作业二学生答案: [C;]标准答案:C得分: [10] 试题分值:10、09.(错误）设有如下接口定义interfaｃe IShaｐe ｛double Pｉ = 3、１4;voｉd geｔＡrea();}则下面说法错误得就是( )A.在程序得任何一个地方都可以调用gｅtArｅa(C)B.getArｅa()就是抽象方法C.geｔAｒｅa()就是静态方法D.getＡrea()不带有返回值知识点:阶段作业二学生答案: [D;]标准答案:C得分: [0] 试题分值:10、010.设有如下程序pｕbliｃclass Tｒy２｛ｐubliｃ statｉc vｏid main（Stｒing[] args) ｛A ｏｂｊａ = new B(）；ｏbja、ｓｈow（)；}}class A {voｉd show（) ｛System、ｏut、pｒiｎtlｎ（＂a"）；｝}ｃlasｓ B exｔends A { void show(）｛ System、ouｔ、priｎtln(”b");}}则下面说法正确得就是（）A.编译时发生错误B.运行时发生错误C.输出为aD.输出为b知识点:阶段作业二学生答案: [D;]标准答案:D得分: [10] 试题分值:10、0一、单项选择题（共10道小题，共１00、0分）1.(错误)设有如下程序public clａss Try2 {pｕbｌｉc ｓｔaｔｉc vｏｉd main(String[］ aｒgｓ） { Circlｅ c = new Circlｅ(2)；Ｓysteｍ、out、prinｔｌn(ｃ、geｔＡｒeａ());｝｝iｎterｆace ISｈaｐe {double ＰＩ= 3、14;ｄouble getArea(）;}clasｓCircle iｍｐleｍents IShapｅ {pｒiｖate double raｄｉｕs;Ciｒcｌｅ(doｕble radius） {tｈis、raｄius = rａdiｕs；｝douｂｌe getＡrｅa(）｛retuｒｎ (PＩ＊ｒａｄius ＊radｉus)；}｝则下面说法正确得就是（ A )A.编译时发生错误B.运行时发生错误C.输出为１２、５6D.输出为0知识点:阶段作业二学生答案:[C;]得分: [0] 试题分值:10、02.下面哪个不能直接导致一个线程停止执行？( )A.调用ｙieｌd（) 方法B.在一个对象上调用 wait（）方法C.在一个对象上调用 notiｆy （) 方法D.在一个对象上调用 Inteｒrｕpt（) 方法知识点:阶段作业三学生答案:[C;]得分: [10] 试题分值:10、03.(错误）请瞧下面未完成得代码pubｌic class Fｏo implemeｎtｓ Runnａbｌe {pｕblic void ruｎ (Thread t）｛Sｙstem、ｏut、pｒinｔln(”Ｒunniｎg、”);}pｕblic sｔatic voｉd maｉn (Sｔriｎg[］ aｒgs） { new Ｔhｒｅａd（nｅｗ Fｏｏ())、start（）；}}结果就是?( C)A.运行时抛出一个异常B.程序能够运行,但就是没有任何输出C.没有实现Ｒuｎnable 接口中得方法导致编译错误D.程序运行后输出“Runninｇ”知识点:阶段作业三学生答案:[D;]得分: [0] 试题分值:10、04.下面能够得到文件“＂得父路径得就是（)A.Strｉng namｅ= （“"）;B.Ｓｔring name= （new File(“”）)、ｇetＰaｒent()；C.Sｔring nａmｅ = （new Fｉｌe（“”）)、gｅｔPareｎtName();D.Stｒｉng name= (new Filｅ（“")）、geｔPａrenｔＦｉｌｅ（)；知识点:阶段作业三学生答案:[B;]得分: [10] 试题分值:10、05.下面哪个基于Uniｃoｄe字符得输入流?（）A.RｅadeｒB.WriｔｅrC.InputStreamD.OｕtputStream知识点:阶段作业三学生答案:[A;]得分: [10] 试题分值:10、06.关于Jａva 流得叙述错误得就是（)A.流就是Java 语言处理Ｉ／O 得方式B.从概念上讲，流就就是一系列得字节序列或字符序列C.引入流得概念得目得就是使得在处理不同得数据输入输出时编程更加方便D.流就是Jａva惟一得非面向对象得语言构成知识点:阶段作业三学生答案:[D;]得分: [10] 试题分值:10、07.请瞧下面得代码public voiｄ teｓt（） {trｙ { oｎeＭetｈod( );System 、ouｔ、pｒｉｎtｌn(“cｏnｄition 1”）;} catcｈ (ArrａyＩｎｄｅｘＯｕtＯfＢoundsＥxcepｔion e) ｛Sysｔem 、ｏｕt 、println(“coｎdｉtiｏｎ２");｝catch (Ｅxｃeption ｅ) ｛Sysｔeｍ、out 、println(“cｏndｉtｉoｎ3”）；} fiｎａlｌｙ｛Systeｍ、ｏut 、println(“conｄiｔｉon ４”);｝}如果oneMeｔhod抛出NullPｏinterExceｐｔioｎ，则程序输出结果为就是( )A.conditioｎ 1B.condition 2C.conｄiｔioｎ３D.condｉtion ３cｏnｄitｉon 4知识点:阶段作业三学生答案:[D;]得分: [10] 试题分值:10、08.设有如下程序pｕblｉｃｃlass Ｔry2 {public static void ｍaｉn(Strｉnｇ［] args) {Ｔry2 oｂj = new Try2();ｏbj、test();}voｉd oneMｅtｈod() {int a ［］ = {1, 2, 3｝；Systｅm、ouｔ、pｒiｎｔln(ａ［0]);｝pｕbｌic voiｄtest（） {try {ｏnｅＭethoｄ( )；Ｓystｅｍ、ｏｕt、printlｎ("coｎdｉtiｏｎ1”）;｝catch (ArｒａｙIndｅxＯutOfBoundsＥxｃｅption e) ｛Ｓｙstem、out、prｉｎｔln（”cｏnditｉｏn 2＂);｝catcｈ (Excｅptioｎｅ) {Systｅm、oｕt、ｐrinｔln(”condiｔion ３”）;｝fｉnａｌly {Sｙstｅm、oｕt、prｉnｔln("fiｎalｌy”); }}}则程序得输出结果得就是（）A.１ｃoｎditｉon 1finallyB.conditｉoｎ２finalｌyC.ｃonｄitioｎ 3finaｌlｙD. 3ａｏｎdｉtiｏｎ 1fｉｎally知识点:阶段作业三学生答案:[A;]得分: [10] 试题分值:10、09.(错误）关于异常得说法错误得就是（ C )A.所谓异常,就就是程序得运行时错误。
北京邮电大学微机原理与接口技术阶段作业3
试题分 5.0
值:
13.
14. 为了使 MOV AX，VAR 指令执行后，AX 寄存器中的内容为 4142H， 下面哪一种数据定义会产生不正确的结果_____ A. VAR DW 4142H B. VAR DW 16706 C. VAR DB 42H，41H D. VAR DB 41H，42H
JZ NEXT
D. OR BL, 4FH
JZ NEXT
知识点: 单元 4 习题 学生答
[B;] 案: 得分: [5] 提示:
试题分 5.0
值:
28.
29. 零地址运算指令在指令格式中不给出操作数地址，因此它的操 作数可以来自______。 A. 立即数和栈顶 B. 栈顶和次栈顶 C. 暂存器和栈顶 D. 寄存器和内存单元
知识点: 单元 4 习题 学生答
[B;] 案: 得分: [5] 提示:
试题分 5.0
值:
36.
37. SKY: MOV AL,20H 中操作数为_____ A. MOV B. SKY C. AL 或 20H D. AL 和 20H
知识点: 单元 4 习题 学生答
[D;] 案: 得分: [5] 提示:
知识点: 单元 4 习题 学生答
[B;] 案: 得分: [5] 提示:
试题分 5.0
值:
26.
27. 测试 BL 寄存器内容是否与数据 4FH 相等，若相等则转 NEXT 处 执行，可实现的方法是____ A. TEST BL, 4FH
JZ NEXT
B. XOR BL, 4FH
JZ NEXT
C. AND BL, 4FH
一、单项选择题（共 20 道小题，共 100.0 分）
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一、阅读理解（共1道小题，共25.0分）
1. A pretty, well―dressed young lady stopped a taxi in a big square, and a said to the driver, "Do you see
that young man at the other side of the square?"
"Yes," said the taxi driver. The young man was standing outside a restaurant and looking impatiently (不耐烦地) at his watch every few seconds.
"Take me over there," said the young lady.
There were a lot of cars and buses in the square, so the taxi driver asked, "Are you afraid to cross the street?"
"Oh, no!" said the young lady. "But I promised that I would meet the young man for lunch at one o' clock, and it is now a quarter to two. If I arrive in a taxi, it will at least seem as if I had tried not to be late."
1. How did the young woman get to the square?
A. She arrived in a taxi.
B. She drove there in a car.
C. She got there by bus.
D. The story doesn't tell us.
2. Why did the lady stop the taxi?
A. Because she didn't want to be late for her appointment (约会).
B. Because she wanted to get out of the taxi.
C. Because she wanted to go to the restaurant in it.
D. Because she was afraid of walking across the street.
3. The young man at the other side of the square_______.
A. had probably been waiting for a long time
B. had some problem with his watch
C. was probably a waiter of the restaurant
D. was someone the young lady didn't want to see
4. The young lady was_______.
A. clever at making excuse
B. not late at all
C. 45 minutes earlier
D. 15 minutes late
5. Had she tried not to be late?
A. Yes, she had tried her best.
B. No, she was just pretending that she had tried.
C. Yes, she had tried but she was still late.
D. No, she thought being late was better than being early.
试题分值：25.0
得分：[5, 5, 5, 5, 5]
9. If I had to do something ___________ with my hands. I would do poorly.
A. interesting
B. intricate
C. interrupt
D. interior
知识点: 第一部分
学生答案: [B;] 标准答案: B;
得分: [5] 试题分值: 5.0
提示: 该题选B，题目大意是“如果我不得不用双手做一些复杂的事情，我会干得很差劲。
”
intricate：形容词a. 错综复杂的；复杂精细的
The intricate machine requires a skilled operator. 这种复杂精细的机器须由技能熟练的人操作。
10.
11. In a world where I could not use my ___________ training, I would prove myself a moron.
A. scholar
B. academic
C. academician
D. schooling
知识点: 第一部分
学生答
案:
[B;] 标准答案: B;
得分: [5] 试题分值: 5.0
提示: 该题选B，题目大意是“在一个无法运用我所受过的学校训练的世界上，我会干得很差劲。
”
academic：形容词a. 大学的，学院的；学校的；学术的
1. academic freedom 学术自由
2. A good historian must have an academic mind. 出色的历史学家须有学术头脑。
3. Professor Watson is leaving the academic world to take a job in industry. 沃森教
授将要离开学术界到工业界去工作。
4. Sir Lawrence Alma-Tadema was an English painter in the academic tradition.阿尔玛•台德玛是学院派的英国画家。
12.
13. Praise is particularly appreciated by those doing ___________ jobs.
A. routine
B. rural
C. racial
D. rude。