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数据是具有某种含义的数字 信号的组合,如字母、数字和符号

时间:2017-11-24 14:18来源:未知 作者:admin 点击:
4. 数据是具有某种含义的数字 信号的组合,如字母、数字和符号等。 A. 错误 B. 正确 满分:2 分 5. 在发生火灾时,消防广播信号具有最高级优先广播权。 A. 错误 B. 正确 满分:2 分 6. 与离子式感烟传感器相比,光电式感烟传感器适合大多数现场条件比较复杂的

、单选题(共 24 道试题,共 84 分。)    得分:144
1.  What is the train ________ to Birmingham?
A. fee
B. tip
C. fare
D. cost
正确答案:C      满分:4  分  得分:4
2.  I didn’t buy the apples; she gave them to me ________ nothing.
A. with
B. as
C. for
D. by
正确答案:C      满分:4  分  得分:4
3.  There have been many ______ in their marriage, but they still love each other.
A. right and wrong
B. back and forth
C. ups and downs
D. right and left
正确答案:C      满分:4  分  得分:4
4.  I didn’t know what to do, but then an idea suddenly _______ to me.
A. appeared
B. happened
C. occurred
D. emerged
正确答案:C      满分:4  分  得分:4
5.  New businesses _________ in this area due to the new policy adopted recently.
A. thrive
B. succeed
C. complete
D. achieve
正确答案:A      满分:4  分  得分:4
6.  Mathematics ________ the study or science of numbers.
A. is
B. are
C. was
D. were
正确答案:A      满分:4  分  得分:4
7.  Their efforts to improve the production have been very _________, and they have been praised by the company for their contribution.
A. effective
B. efficient
C. effect
D. affective
正确答案:A      满分:4  分  得分:4
8.  With his work completed, the manager stepped back to his seat, feeling pleased ________ he was a man of action.
A. which
B. that
C. what
D. whether
正确答案:B      满分:4  分  得分:4
9.  I don’t know the park, but it’s ________ to be quite beautiful.
A. said
B. told
C. spoken
D. talked
正确答案:A      满分:4  分  得分:4

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