题目内容

计算机计算出现的上溢和下溢,都称为溢出错误。( )

A. 对
B. 错

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下列说法中是数值计算应注意问题的是()

A. 简化计算过程,减少运算次数。
B. 避免相近两数相减。
C. 防止大数“吃掉“小数。
D. 要尽量消除计算误差。

An idea came to her______ she might do the experiment in another way.

A. that
B. what
C. when
D. which

Obviously there was little certainty______ the chairman would agree to this proposal.

A. which
B. why
C. what
D. that

I have no idea______ has happened to him.

A. what
B. that
C. when
D. why