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【单选题】
计算机操作的最小单位时间是:A.
时钟周期
B.
指令周期
C.
机器周期
D.
C PU周期
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反馈参考答案：
举一反三
【单选题】What exactly does the man want to find out?
A.
What people think of the bus service.
B.
How many people are using the bus service.
C.
Which group of people uses the bus service most often.
【单选题】What does 'enunciates' mean in the second paragraph?
A.
Support.
B.
Disapprove.
C.
Announce.
D.
Manipulate.
【单选题】What effect does excessive positive onisation have on some people?
A.
They think they are mad.
B.
They feel very tired.
C.
They become violently sick.
D.
They are too tired to do anything.
【单选题】What does the second test check?
A.
Your eyesight.
B.
Your driving ability.
C.
The mechanical condition of your car.
D.
Your knowledge of traffic regulations.
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