— Was your father at home last night? —

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问题选择题

— Was your father at home last night?

— No, my father wasn't at home. He ______ to help to send the old man to hospital. [ ]

A．asked

B．was asked

C．was asking

D．had asked

答案

答案：B

单项选择题

计算机在进行浮点数的相加（减）运算之前先进行对阶操作，若x的阶码大于y的阶码，则应将（）。

A．x的阶码缩小至与y的阶码相同，且使x的尾数部分进行算术左移。

B．x的阶码缩小至与y的阶码相同，且使x的尾数部分进行算术右移。

C．y的阶码扩大至与x的阶码相同，且使y的尾数部分进行算术左移。

D．y的阶码扩大至与x的阶码相同，且使y的尾数部分进行算术右移。

选择题

A person with good manners never laughs people when they are trouble. [ ]

A.on ; in

B.in ; at

C.on ; at

D.at ; in