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CET4-LISTENING-SECTIONB.mp3: Section B Directions: Inthis section, you will hear 3 short passages. At the end of each passage, youwill hear some questions. Both the passage and the questions will be spoken only once, After you hear a question, you must choose the best answer from thefour choices marked A), B), C) and D ). Then mark the corresponding letter on Answer Sheet I with a single line through the centre. Passage One Questions 16 to 19 are based on the passage you have justheard. 16. A) She had a desire to help others. B) She wanted to find out more about it. C) She needed some overseas experience. D) She was interested in farming. 17. A) Carry out acultural exchange program. B) Work on an agricultural project. C) Learn Portuguese. D) Teach English. 18. A) She found it difficult to secure a job in her own country. B) She wanted to renew her contact with the Peace Corps. C) She was invited to work as an English teacher. D) She could not get the country out of her mind. 19. A) By teaching additional English classes. B) By writing stories for American newspapers. C) By working part time for the Peace Corps. D) By doing odd jobs for local institutions. Passage Two Questions 20 to 22 are based on the passage you have justheard. 20. A) Time spentexercising. B) Time spent working. C) Time spent on leisure activities. D) Time spent with friends and family. 21. A) Reading. B) Surfing the Web. C) Eating out. D) Watching TV. 22. A) Driving. B) Gardening. C) Going to the pub. D) Visiting friends. Passage Three Questions 23 to 25 are based on the passage you have justheard. 23. A) The car driver was trying to avoid hitting a rabbit. B) The car driver was partly responsible for the accident, C) McLaughlin was talking to his manager while driving. D) McLaughlin's carelessness resulted in the collision. 24. A) He crashed intoa car parked there. B) He knocked down several mailboxes. C) He tore down the company's main gate. D) He did serious damage to a loaded truck. 25. A) He will lose hisjob. B) He will have to pay damages. C) He will be fined heavily. D) He will receive retraining.
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【单选题】下列关于计算机系统硬件的说法不正确的是()。
A.
CPU主要由运算器和控制器组成
B.
关闭计算机电源后,RAM中的程序和数据就消失了
C.
硬盘上的数据可由CPU直接存取
D.
硬盘驱动器既属于输入设备,又属于输出设备
【单选题】下列关于计算机系统硬件的说法中,不正确的是
A.
CPU主要由运算器、控制器和寄存器组成
B.
当关闭计算机电源后,RAM中的程序和数据就消失了
C.
软盘和硬盘上的数据据可由CPU直接存取
D.
软盘和硬盘即属于输入设备,也属于输出设备
【单选题】下列关于硬件结构的说法中,不正确的是
A.
单机结构下一台微机同一时刻只能一人使用
B.
多机松散结构下一台微机同一时刻可供多人使用
C.
多用户结构适用于数据数据量大的企业
D.
客户机/服务器结构不需要经过Internet便能实现一台服务器工多台客户机访问
【简答题】若逻辑函数F=A+BC,则其或与形式是______。
【单选题】银行以95元买进一张面值为100元的债券,票面收益率为10%,到期后,银行获得10元的债券 利息收入,其当期收益率为
A.
5%
B.
10%
C.
10.5%
D.
15%
【单选题】下列关于计算机硬件组成的说法中,不正确的是( )
A.
CPU不可以直接读取计算机硬盘上的QQ程序
B.
CPU主要由运算器、控制器和ROM组成
C.
当关闭计算机电源后,RAM中的内容随即消失
D.
有些硬件既属于输入设备,又属于输出设备
【单选题】下列关于硬盘的说法,不正确的是
A.
硬盘驱动器又称为硬盘机或硬盘子系统,它是独立于主机之外的一个完整装置
B.
IDE接口的特点是数据最大传输速率是3 MB/s,一条IDE信号线最多连接两台IDE设备
C.
SATA即串行ATA接口,它于2000年年初由IBM公司率先提出
D.
SATA的协议向后兼容,对于软件而言是通用的
【简答题】已知逻辑函数F的真值项和任意项为 , 求函数F的全部质蕴涵。
【单选题】设逻辑函数 则与f等价的逻辑函数是( )。
A.
a+c
B.
a+b
C.
D.
【简答题】已知逻辑函数 F=A+BC' ,使函数 F=0 的输入变量( A 、 B 、 C )的取值组合有: , , 。
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