西安交通大学18年9月课程考试计算机应用基础作业考核试题

西安交通大学19年9月课程考试《计算机应用基础》作业考核试题(含主观题)1、B2、D3、B4、A5、A一、单选题一、单选题（共20 道试题，共40 分。

）V 1. 启动幻灯片切换可以通过（）命令。

A. 格式/幻灯片切片B. 幻灯片放映/幻灯片切换C. 插入/幻灯片切换D. 工具/幻灯片切换正确答案：B2. PowerPoint2003中“文件”菜单中的“保存”命令其快捷键是（）。

A. Ctrl+PB. Ctrl+OC. Ctrl+ND. Ctrl+S正确答案：D3. 与Internet相连的计算机，不管是大型的还是小型的，都称为( )。

A. 工作站B. 主机C. 服务器D. 客户机正确答案：B4. Word常用工具栏中的“显示比例”选择框，是用于（）的。

A. 字符缩放B. 字符缩小C. 字符放大D. 上述均不是正确答案：A5. 在Word中，要插入一些比较复杂的图形，用户可以通过( )来完成。

A. “自选图形”按钮B. “矩形”按钮C. “椭圆”按钮D. “插入艺术字”按钮正确答案：A6. 多媒体计算机系统的两大组成部分是（）。

A. 多媒体功能卡和多媒体主机B. 多媒体通信软件和多媒体开发工具C. 多媒体输入设备和多媒体输出设备D. 多媒体计算机硬件系统和多媒体计算机软件系统正确答案：D7. 在IE浏览器访问FTP服务器时，下列地址中属于有效的FTP地址格式的是( )。

A. ftp://B. C. Smtp://D. tcp://正确答案：A8. 水平标出现在Word文档工作区的（）。

A. 左侧B. 底部C. 右侧D. 顶部正确答案：D9. PowerPoint2003中“文件”菜单中的“保存”命令其快捷键是（）。

A. Ctrl+PB. Ctrl+OC. Ctrl+ND. Ctrl+S正确答案：D10. 以下选项中，( )不是从技术上讲的计算机安全的三大特征。

A. 实体安全B. 网络安全C. 系统安全D. 信息安全正确答案：B11. 以下格式中，不属于视频文件格式的是( )。

西安交通大学17年9月课程考试《Visual Foxpro及其应用》作业考核试题1709一、单选题（共50 道试题，共100 分。

）1. 在Visual Foxpro 中，有下面几个内存变量赋值语句：X={^2001-07-28 10:15:20 PM} Y=.T. M=$123.45 N=123.45 Z=“123.24”执行上述赋值语句之后，内存变量X,Y,M,N 和Z 的数据类型分别是（）A. D,L,Y,N,CB. D,L,M,N,CC. T,L,M,N,CD. T,L,Y,N,C正确答案：D2. 在以下命令序列中，总能实现插入一条空记录并使其成为第八条记录的是（）A. SKIP7B. GOTO7 INSERTBLANKC. LOCATEFORRECNO()=8D. GOTO7 INSERTBLANKBEFORE正确答案：B3. 为了合理组织数据，应遵从设计原则是（）A. “一事一地”的原则，即一个表描述一个实体或实体间的一种联系B. 表中的字段必须是原始数据和基本数据元素，并避免在表之间出现重复字段C. 用外部关键字保证有关联的表之间的联系D. 以上各条原则都包括正确答案：D4. 退出Visual Foxpro 的操作方法是（）A. 从“文件”下拉菜单中选择“退出”选项B. 用鼠标左按钮单击关闭窗口按钮C. 在命令窗口中键入QUIT命令，然后敲回车键D. 以上方法都可以正确答案：D5. 下面有关关联操作的说明,其中错误的是（）A. 关联本身并不进行具体的数据操作,在关联的基础上进行什么数据操作由其它命令完成。

B. 只在两个数据库具有同名字段或相同值域字段的情况下才能按字段建立关联。

C. 在当前工作区对其他工作区的被关联数据库的数据可任意读写，即对子数据库的数据既能使用又能修改和追加。

D. 关联的作用是单向的，即当前数据库记录指针的定位影响被关联数据库的记录指针定位，而不可能出现相反方向的影响。

(单选题) 1: 编译过程中，语法分析器的任务就是( )A: 分析单词是怎样构成的B: 分析单词串是如何构成语句和说明的C: 分析语句和说明是如何构成程序的D: 分析程序的结构正确答案：(单选题) 2: 算符优先分析法每次都是对________进行归约：A: 句柄B: 最左素短语C: 素短语D: 简单短语正确答案：(单选题) 3: 文法开始符号的所有________作为属性计算前的初始值。

A: 综合属性B: 继承属性C: 继承属性和综合属性D: 都不是正确答案：(单选题) 4: 乔姆斯基(Chomsky)把文法分为四种类型，即0型.1型.2型.3型。

其中3型文法是( ) A: 非限制文法B: 正则文法C: 上下文有关文法D: 上下文无关文法正确答案：(单选题) 5: Pascal中过程说明的局部变量地址分配在（）。

A: 调用者的数据区中B: 被调用者的数据区中C: 主程序的数据区中D: 公共数据区中正确答案：(单选题) 6: 不是编译程序的组成部分。

A: 词法分析程序B: 代码生成程序C: 设备管理程序D: 语法分析程序正确答案：(单选题) 7: 教材介绍了三种符号表的构造和处理方法，其中________中常把符号表组织成二叉树形式。

A: 线性组织；B: 排序组织和二分法；C: 杂凑（散列）组织；D: 非线性组织正确答案：(单选题) 8: 数组的内情向量中肯定不含数组的（）信息A: 维数B: 类型C: 各维的上下界D: 各维的界差正确答案：(单选题) 9: 在LR（0）的ACTION子表中，如果某一行中存在标记“rj”的栏，则( )。

A: 该行必定填满rjB: 该行未填满rjC: 其他行也有rj正确答案：(单选题) 10: 如果一个编译程序能产生不同于其宿主机的机器代码，则称它为( )A: 诊断编译程序B: 优化编译程序C: 交叉编译程序D: 可变目标编译程序正确答案：(单选题) 11: 在使用高级语言编程时,首先可通过编译程序发现源程序的全部和部分( )错误。

西安交通大学18年9月课程考试《药物信息学（高起专）》作业考核试题-0001 试卷总分:100 得分:0一、单选题 (共 30 道试题,共 60 分)1.下列哪项属于文献的外表特征A.著者B.主题词C.文摘D.分类号正确答案:A2.IM指的是A.医学索引B.化学文摘C.医学文摘D.国际药学文献正确答案:A3.下列选项中不是光盘检索系统的特点是A.检索速度好B.稳定性好C.检索费用低廉D.更新快正确答案:D4.通过哪个检索途径可以检索某个学科有哪些相关的刊物（）A.主题途径B.期刊检索C.基本检索D.作者检索正确答案:B5.检索语言可分为A.规范化语言和受控语言B.规范化语言和非自然语言C.非规范化语言和非受控语言D.规范化语言和非规范化语言正确答案:D6.在CBMdisc检索中，要检索“蔡挺”发表的文献，以下检索式正确的是A.Cai-T in AUB.蔡挺 in AUC.AU：蔡挺D.AU=蔡挺正确答案:D7.国内第一个综合性中文医学文献光盘数据库是A.《中文科技资料目录》（医药卫生）B.《中国医学文摘.护理学》C.《中文科技资料目录》（中草药）D.CBMDISC正确答案:D8.检索“阿斯匹林治疗心肌梗死”的文献，阿斯匹林应组配副主题词A.theraputic useB.Drug TherapyC.TherapyD.Diagnosis正确答案:A9.1953年新中国颁布的第一部药品标准法典是A.《中华药典》B.《关于严禁鸦片烟毒的通令》C.《中华人民共和国药典》D.《中华人民共和国药品管理法》正确答案:C10.以下描述错误的是（）A.以信息角度看，合理用药实质上是一个在病人、医药工作者和药品之间的信息运动过程。

B.药品信息若完整、充分地从药师传递给病人，则不会导致病人服药错误C.药学信息组织的目的可以概括为“实现无序药学信息向有序药学信息的转换”。

D.和手工检索方式相比，计算机检索速度快，信息量大，时效性强。

西安交通大学18年9月课程考试《CAD-CAM》作业考核试题
1、A
2、C
3、D
4、C
5、A
一、单选题共30题，60分
1、在CAD作业中，采用数据文件形式来处理工程数表、线图数据，其目的是（）A减少占用内存，使数据文件独立于计算程序
B减少占用内存，使数据文件与计算程序融为一体
C占用大量内存，较好解决数据共享
D占用外存，使数据文件与操作系统紧密结合
参考答案是：A
2、应用软件是在操作系统、( )基础上针对某一专门的应用领域而研制的软件。

ACAD软件
BCAM软件
C支撑软件
D编译系统
参考答案是：C
3、以下与CAD/CAM无关的概念和技术是( )
A并行工程
B精益生产
C敏捷制造
DCAI
参考答案是：D
4、在CAD/CAM系统中，()是连接CAD、CAM的纽带。

ACAE
BCAG
CCAPP
DCAQ
参考答案是：C
5、关于MRPⅡ,下列描述中错误的是( )
AMRPⅡ是一种与MRP完全不同的新技术
BMRPⅡ在内容和能力上有了很大扩充,涵盖了企业整个生产经营活动
CMRPⅡ集成了生产、财务、销售、工程技求、采购等各个子系统
DMRPⅡ系统的核心部分是物料需求计划
参考答案是：A。

西安交通大学17年9月课程考试《微机原理与接口技术》作业考核试题试卷总分:100 得分:100一、单选题 (共 30 道试题,共 60 分)abc1. 下列指令中不会改变指令指针寄存器内容的是（）A. MOVB. JMPC. CALLD. RET满分：2 分正确答案:A2. 实模式下，80486管理的内存空间中，地址为00000H～003FFH中存放着（）A. 用户程序代码B. BIOS代码C. DOS系统代码D. 中断向量表满分：2 分正确答案:D3. 实模式下，NMI中断的中断矢量在中断矢量表中的位置是（）A. 由DOS自动分配B. 由程序指定C. 固定在已0008H开始的2个字单元中D. 固定在中断矢量表表首满分：2 分正确答案:C4. 占用CPU时间最长的数据传送方式是（）A. DMAB. 中断C. 查询D. 无条件满分：2 分正确答案:C5. 利用程序查询方式传送数据时，CPU必须读（）以判断是否传送数据A. 外设的状态B. DMA的请求信号C. 数据输入信息D. 外设中断请求满分：2 分正确答案:A6. 对可编程接口芯片进行读/写操作的必要条件是（）A. RD=0B. WR=0C. RD=0或WR=0D. CS=0满分：2 分正确答案:D7. 若已知[X]补=11101011B，[Y]补=01001010B，则[X–Y]补=（）A. 10100001BB. 11011111BC. 10100000BD. 溢出满分：2 分正确答案:A8. 算术移位指令SAR用于（）A. 带符号数乘2B. 带符号数除2C. 无符号数乘2D. 无符号数除2满分：2 分正确答案:B9. 在下列各种中断中，需由外部电路提供中断类型号的是（）A. INTOB. INTnC. NMID. INTR满分：2 分正确答案:D10. 8086的CPU由（）两部分组成。

A. SP、ALUB. 控制器、FLAGSC. EU、BIUD. EU、ALU满分：2 分正确答案:C11. 80486CPU进行算术和逻辑运算时，可处理的信息的长度为（）A. 32位B. 16位C. 8位D. 都可以满分：2 分正确答案:D12. 将微处理器、内存储器及I/O接口连接起来的总线是（）A. 片总线B. 外总线C. 系统总线D. 局部总线满分：2 分正确答案:C13. 下列描述正确的是（）A. 汇编语言仅由指令性语句组成B. 汇编语言包括指令性语句和伪指令语句C. 指令性语句和伪指令语句的格式是完全相同的D. 指令性语句和伪指令语句需经汇编程序翻译成机器代码后才能执行满分：2 分正确答案:B14. 80486CPU响应中断时，自动压入堆栈的信息是（）A. AX，BX，CX，DX的内容B. AX，CX的内容C. CS，IP，SP的内容D. CS，IP，标志寄存器的内容满分：2 分正确答案:D15. 下列指令中，错误的是（）A. MOVBX，OFFSETBUFB. LEASI，BUFC. LEADI，OFFSETBUFD. MOVBP，SEGBUF满分：2 分正确答案:C16. 下列引起CPU程序中断的四种情况中，（）需要由硬件提供中断类型码A. INTOB. NMIC. INTRD. INTn满分：2 分正确答案:C17. 在中断方式下，外设数据输入到内存的路径是（）A. 外设→数据总线→内存B. 外设→数据总线→CPU→内存C. 外设→CPU→DMAC→内存D. 外设→I∕O接口→CPU→内存满分：2 分正确答案:D18. 转移类指令对标志位的状态（）A. 有影响B. 部分影响C. 无影响D. 随意满分：2 分正确答案:C19. 欲从存储单元取某操作数，可采用（）A. 寄存器寻址、寄存器间接寻址B. 立即寻址、直接寻址C. 立即寻址、寄存器间接寻址D. 寄存器间接寻址、直接寻址满分：2 分正确答案:D20. 某系统中，已知SS=2360H，SP=0800H，若将20H个字节的数据入栈，则SP的内容为（）A. 0780HB. 0820HC. 23E20HD. 07E0H满分：2 分正确答案:D21. 某系统中，已知建立堆栈时SS=2360H，SP=0800H，经过一段时间后，SP的内容变为0700H，则堆栈中有多少个字的数据（）A. 80HB. 50HC. 100D. 100H满分：2 分正确答案:A22. 若AL=3BH，AH=7DH，则AL和AH中的内容相减后，标志CF、AF和PF的状态分别是（）A. 0、0、1B. 1、1、1C. 0、1、0D. 1、0、0满分：2 分正确答案:B23. 计算机工作中只读不写的存储器是（）A. DRAMB. ROMC. SRAMD. EEPROM满分：2 分正确答案:B24. （）表示中，二进制数11111111B表示十进制数–1A. 原码B. 反码C. 补码D. BCD码满分：2 分正确答案:C25. INC指令不影响（）标志A. OFB. CFC. SFD. ZF满分：2 分正确答案:B26. 当AH=（）时，执行INT21H指令可在屏幕上显示一组字符A. 01HB. 02HC. 09HD. 0AH满分：2 分正确答案:C27. 利用程序查询方式传送数据时，CPU必须读（）以判断是否传送数据A. 外设的状态B. DMA的请求信号C. 数据输入信息D. 外设中断请求满分：2 分正确答案:A28. 若SI=0053H，BP=0054H，执行SUBSI，BP后，则（）A. CF=0，OF=0B. CF=0，OF=1C. CF=1，OF=0D. CF=1，OF=1满分：2 分正确答案:C29. 微机系统中的存储器可分为四级，其中存储容量最大的是（）A. 内存B. 内部寄存器C. 高速缓冲存储器D. 外存满分：2 分正确答案:D30. 微机的内存器可用（）构成A. RAM和ROMB. 硬盘C. 软盘D. 光盘满分：2 分正确答案:A二、判断题 (共 20 道试题,共 40 分)1. I/O接口的基本功能之一是完成数据的缓冲。

西安交通大学18年9月课程考试《计算机应用基础》作业考核试题（含主观题）
1、A
2、D
3、B
4、C
5、C
一、单选题共20题，40分
1、目前在中小学教学中广泛使用的计算机是( )
A微型计算机
B小型计算机
C中型计算机
D大型计算机
选择是：A
2、在Excel工作表第D行交叉位置处的单元格，其绝对单元格名应是（）。

AD4
B$D4
CD$4
D$D$4
选择是：D
3、word2000中，执行一次“拆分表格”命令可以将一个表格拆分成( )。

A左右两个单独的表格
B上下两个单独的表格
C多个表格
D多个单元格
选择是：B
4、在windows中，“回收站”是( )的一块区域
A软盘上
B内存中
C硬盘上
D高速缓存中
选择是：C
5、以下格式中，不属于视频文件格式的是( )。

AMPEG
BAVI
CMIDI
DRM
选择是：C。

西安交通大学18年9月课程考试《英语2（新录）》作业考核试题（含主观题）试卷总分:100 得分:100一、单选题 (共 20 道试题,共 40 分)第1题,I had great difficulty _________ the suitable food on the menu in that restaurant.A、findB、foundC、to findD、finding正确答案:D第2题,The new gym is _________ as the old one.A、three times as largeB、three times the sizeC、three times larger thanD、as three times large正确答案:A第3题,—I can’t get on well with some of my classmates. They just leave me in the cold. —________. But what’s the reason?A、Sorry to hear that.B、How about that?C、Don’t mention it.D、Never give up!正确答案:A第4题,—Dad, I won first place in the speech contest.—______! I’m proud of you, my daughter.A、CongratulationsB、Good luckC、My pleasureD、Good idea正确答案:A第5题,Is there _____ in today’s paper?A、important somethingB、important anythingC、something importantD、anything important正确答案:D第6题,—What do you want to do next? We have half an hour until the basketball game. — ______. Whatever you want to do is fine with me.A、It just dependsB、It’s up to youC、All rightD、Glad to hear that正确答案:B第7题,You can’t imagine how my sister finished the relay race ________ her left foot wounded so much.A、thatB、forC、withD、while正确答案:C第8题,The Browns _______ the trains; if not, they would have been at the get-together as scheduled.A、must missB、must have missedC、should missD、should have missed正确答案:B第9题,— Your spoken English is so good. Have you been abroad?— Yes. I ________ in London for two years.A、have stayedB、stayedC、had stayedD、have been staying正确答案:A第10题,—Have you been wasting time on computer games again?—________. I’ve been studying a lot and I need a break.A、No wayB、I don’t agreeD、I couldn’t agree more正确答案:C第11题,China’s space station, ________ three capsules and cov ering an area of no less than 60 square meters, will be completed within 10 years.A、making up ofB、made upC、consisted ofD、consisting of正确答案第12题,— How do you find the concert in the Beijing Grand Theatre last night? —______. But the conductor was perfect.A、I couldn’t agree moreB、I don’t think much of itC、I was crazy about itD、I really like it正确答案:B第13题,The discovery of new evidence led to _________.A、the thief having caughtB、catch the thiefC、the thief to be caughtD、the thief being caught正确答案:D第14题,Mr. White _____ at 8:30 for the meeting, but he didn’t turn up.A、should have arrivedB、should arriveC、should have had arrivedD、should be arriving正确答案:A第15题,—Excuse me, could you tell me the way to the British Museum?—Sorry, I’m a stranger here.— ______.A、Thanks anywayB、It doesn’t matterC、Never mind正确答案:A第16题,— Thank you very much for helping me when I was in trouble.— _____.A、Don’t mention itB、With pleasureC、That’s rightD、You said it正确答案:B第17题,The guide was enthusiastic and knowledgeable and we spent a lovely evening wandering into places which we ________ straight past otherwise.A、had walkedB、were walkingC、would have walkedD、must have walked正确答案:C第18题,—The weather here in summer is so changeable. Please take an umbrella when you go out. — ________.A、Well, don’t worryB、Well, it just dependsC、Oh, take it easyD、OK, just in case正确答案:D第19题,— Have a nice weekend.— Thank you. _____.A、See you laterB、What about youC、The same to youD、It’s my pleas ure正确答案:C第20题,Had it not been for the haze(雾霾) weather phenomenon, there _____ fewer car accidents in Beijing then.A、wereB、would beC、may beD、would have been正确答案:D二、阅读理解 (共 3 道试题,共 30 分)1.Psychologists have discovered that even the most independent-minded of us will conform to social pressure when we are with a group of people. In one classic experiment, people were shown a vertical line and asked to find a line of identical length from a selection of three. You might think that this is an absurdly easy task, and when people perform it by themselves they do it very well. However, psychologists have discovered that we are very easily swayed by the opinions of other people when we do this task in a group. In one study, a group of three people was set up, where two of the people were confederates (同伙) of the experimenter. When the confederates deliberately gave wrong answers, people were often swayed to give the wrong answer also. In fact, 75% of people gave at least one wrong answer, with some people conforming to peer pressure on every occasion. But why do people conform in this way? In an easy task like this, it seems that people do not want to step out of line with the prevailing opinion of the group. On more difficult tasks, people also conform because they lose confidence in their own ability to make decisions and prefer to trust the majority opinion instead. A typical example of this kind of conformity arises when we come across people in distress. Would you help a woman who has been attacked in the street? It turns out that you are much more likely to go to her assistance if you are alone. When other people are also around, a diffusion of responsibility occurs. People are paralysed into inaction, because everyone assumes that someone else will go to the woman’s assistance.(1).In Paragraph 1, the underlined word "conform" probably means “________”.A.seek independenceB.disobey ordersC.seek pleasureD.follow what others do(2).What is the purpose of the experiment described in Paragraph 2? To ________.A.explain why people would be influenced by the opinions of othersB.prove that people are easily influenced by the opinions of othersC.train the confederates of the experimenter as independent-mindedD.describe how people would be influenced by the opinions of others(3).In the last paragraph, according to the author, why wouldn’t one help the woman? He ________.A.thinks he has no responsibilities to give a handB.thinks he has nothing to do with itC.is too shy to give his helping handD.thinks someone else will offer assistance(4).What method does the author mainly use to develop the text?A.Giving examples.B.Cause-effect analysis.parative analysis.D.Process analysis.正确答案: (1).D (2).B (3).D (4).A2.Owning a smartphone may not be as smart as you think. It may let you surf the Internet, listen to music and snap photos wherever you are…but it also turns you into a workaholic, it seems. A study suggests that, by giving you access to emails at all times, the all-singing, all-dancing mobile phone adds as much as two hours to your working day. Researchers found that Britons work an additional 460 hours a year on average as they are able to respond to emails on their mobiles. The study by technology retailer Pixmania reveals the average UK working day is between 9 and 10 hours, but a further two hours is spent responding to or sending work emails, or making work calls. More than 90 percent of office workers have email-enabled phones, with a third accessing them more than 20 times a day. Almost one in ten admits spending up to three hours outside their normal working day checking work emails. Some workers confess(承认) they are on call almost 24 hours a day, with nine out of ten saying they make work emails and calls outside their normal working hours. The average time for first checking emails is between 6 a.m. and 7 a.m., with more than a third checking their first emails in this period, and a quarter checking them between 11 p.m. and midnight. Ghadi Hobeika, marketing director of Pixmania, said, “The ability to access literally millions of apps, keep in contact via social networks and take photos and video as well as text and call has made smartphones invaluable for many people. However, there are drawbacks. Many companies expect their employees to be on call 24 hours a day, seven days a week, and smartphones mean that people literally cannot get away from work. The more constantly in contact we become , the more is expected of us ina work capacity(容量).”(1).What can we conclude from the text?A.All that glitters is not gold.B.It never rains but pours.C.Every coin has two sides.D.It’s no good crying over spilt milk.(2).The underlined word “accessing” in the third paragraph can be replaced by “________”.A.callingB.reachingC.gettinging(3).Which of the following is true according to the text?A.The average UK working time is between nine and twelve hours.B.Nine- tenths of workers in UK spent over three hours checking work emails.C.One-fourth of the workers in UK check their first mail between 11 p.m. and midnight.D.The average time for first checking emails is between 6 a.m. and 8. am.(4).What’s the main idea of the text?A.Workaholics like smartphones.B.Smartphones bring about extra work.C.Smartphones make our life easier.D.Employers don’t like smartphones.正确答案: (1).C (2).D (3).C (4).B3.The sharing economy, represented by companies like Airbnb or Uber, is the latest fashion craze. But many supporters have overlooked the reality that this new business model is largely based on escaping regulations and breaking the law. Airbnb is an internet-based service that allows people to rent out spare rooms to strangers for short stays. Uber is an internet taxi service that allows thousands of people to answer ride requests with their own cars. There are hundreds of other such services. The good thing about the sharing economy is that it promotes the use of underused resources. Millions of people have houses or apartments with empty rooms, and Airbnb allows them to profit from these rooms while allowing guests a place to stay at prices that are often far less than those charged by hotels. Uber offers prices that are competitive with standard taxi prices and their drivers are often much quicker and more trustworthy. But the downside of the sharing economy has gotten much less attention. Most cities and states both tax and regulate hotels, and the tourists who stay in hotels are usually an important source of tax income. But many of Airbnb’s customers are not paying the taxes required under the law. Airbnb can also raise issues of safety for its customers and tr ouble for hosts’ neighbors. Hotels are regularly inspected to ensure that they are not fire traps and that they don’t form other risks for visitors. Airbnb hosts face no such inspections. Since Airbnb is allowing people to escape taxes and regulations, the company is simply promoting thefts. Others in the economy will lose by bearing an additional tax burden or being forced to live next to an apartment unit with a never-ending series of noisy visitors. The same story may apply with Uber. Uber is currently in disputes over whether its cars meet the safety and insurance requirements imposed on standard taxis. Also, if Uber and related services flood the market, they could harm all taxi drivers’ ability to earn a minimum wage. This downside of the sharing needs to be taken seriously, but that doesn’t mean the current tax and regulatory structure is perfect.(1).What is the positive thing about the sharing economy?A.It is a global trend.B.It is beyond regulations.C.It draws on spare resources.D.It brings in modest profits.(2).What is the problem with Airbnb customers according to the passage?A.They are not regularly inspected.B.They are likely to commit thefts.C.They are allowed not to pay taxes.D.They can be noisy to hosts’ neighbours.(3).What is the argument over Uber according to the passage?A.Whether it guarantees customers’ safety.B.Whether it provides reliable services.C.Whether it lowers customers’ expenses.D.Whether it can compete with standard taxis.(4).What will be talked about in the following paragraphs?A.Existing regulations and laws.B.More downsides of Airbnb and Uber.C.Further development of Airbnb and Uber.D.Necessary improvements of current laws.正确答案: (1).C (2).D (3).A (4).B三、简答题 (共 3 道试题,共 15 分)1.Only in American can a billionaire carry on like plain folks and get away with it. 正确答案:只有在美国，一个亿万富翁才能像平民百姓一样安稳地过着普普通通的日子，而不致于惹来不必要的麻烦。

西安交通大学17年9月课程考试《模拟电子技术》作业考核试题一、单选题（共30 道试题，共60 分。

）1. 为了使放大器带负载能力强，一般引入（）负反馈。

A. 电压B. 电流C. 串联D. 并联正确答案：A2. 乙类推挽功率放大器的理想最大效率为（）。

A. 58.5%B. 68.5%C. 78.5%D. 100%正确答案：C3. 结型场效应管发生预夹断后，管子( )。

A. 关断B. 进入恒流区C. 进入饱和区D. 可变电阻区正确答案：B4. 放大电路的静态工作点是指输入信号（）三极管的工作点。

A. 为零时B. 为正时C. 为负时D. 为正弦信号时正确答案：A5. 已知输入信号的频率为10kHz～12kHz，为了防止干扰信号的混入，应选用( )。

A. 带阻滤波电路B. 带通滤波电路C. 低通滤波电路D. 有源滤波电路正确答案：B6. 在多级放大器中，对零点漂移影响最大的是（）。

A. 前级B. 后级C. 前后级一样D. 中间级正确答案：A7. 乙类推挽功率放大器的理想最大效率为（）。

A. 58.5%B. 68.5%C. 78.5%D. 100%正确答案：C8. 增强型PMOS管的开启电压( )。

A. 大于零B. 小于零C. 等于零D. 或大于零或小于零正确答案：B9. 放大器在输入信号作用下的工作状态，称为（）。

A. 静态B. 动态C. 稳压D. 平衡正确答案：B10. PN结加正向电压时，空间电荷区将（）。

A. 变窄B. 基本不变C. 变宽D. 不确定正确答案：A11. 共射放大电路输出波形下半周失真时为（）失真，此时应该（）偏置电阻。

（）A. 饱和，减小B. 截止，减小C. 饱和，增大D. 截止，增大正确答案：C12. 工作在电压比较器中的运放和工作在运算电路中的运放的主要区别是，前者的运放通常工作在( )。

A. 开环或正反馈状态B. 深度负反馈状态C. 放大状态D. 线性工作状态正确答案：A13. LM386是集成功率放大器，它可以使电压放大倍数在（）变化。

答案]西安交通大学18年9月课程考试《英语2(新录)》作业考核试题(含主观题)正确答案:B第7题,The teacher asked the students _________ the homework on time.A、finishB、finishedC、to finishD、finishing正确答案:C第8题,The more we practice。

_________ we will e.A、the betterB、betterC、the bestD、best正确答案:A第9题,The hotel is _________ to the airport.A、closeB、closedC、closelyD、closer正确答案:A第10题,The company has decided to _________ the project due to financial difficulties.A、cancelB、continueC、beginD、finish正确答案:A第11题,The boy has no interest in sports。

_________ he is very good at playing the piano.A、butB、andC、orD、so正确答案:A第12题,The manager asked us to _________ the meeting room before leaving.A、cleanB、cleaningC、cleanedD、be cleaning正确答案:A第13题,The _________ of the novel is set in the 19th century.A、storyB、plotC、themeD、character正确答案:B第14题,The _________ of the car was badly damaged in the accident.A、wheelB、tireC、engineD、bumper正确答案:D第15题,The company is looking for a _________ manager to oversee the project.A、qualifiedB、qualifyC、qualifyingD、n正确答案:A第16题,The teacher asked the students to _________ the text and answer the ns.A、readB、readingC、readsD、be reading正确答案:A第17题,The _________ of the new product has exceeded our ns.A、popularityB、popularC、populatingD、populate正确答案:A第18题,The doctor advised the patient to _________ more exercise.A、takeB、haveC、doD、make正确答案:C第19题,The _________ of the movie was so unexpected that it left the audience stunned.A、endB、beginningC、plotD、theme正确答案:A第20题,The _________ of the hotel room was very comfortable and clean.A、nB、nC、nD、state正确答案:A二、阅读理解(共2篇,共20道试题,共40分)第一篇A recent study has shown that people who work more than 11 hours a day have a higher risk of developing heart disease thanthose who work eight hours or less。