题目内容

Einstein has ever said “Politics ____ much more difficult than physics.”

A. has
B. have
C. is
D. are

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It’s necessary that _____ them to give us a hand.

A. we asked
B. we ask
C. we will ask
D. we asking

That was not the first time he _ us. I think it is high time we _ strong actions against him.

A. betrayed, take
B. had betrayed, took
C. has betrayed, took
D. has betrayed, take

计算机使用中断的方式与外界交换信息时，保护现场的工作应该是（）。

A. 由CPU自动完成
B. 在中断响应中完成
C. 由中断服务程序完成
D. 在主程序中完成

中断处理的全过程分为（）、（）、中断处理和中断返回。