题目内容

He was the first man who flew across the Atlantic.He was the first man to .

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I remember that I met him a year ago.Iremember .

After he left the office, he went home by car.After ,he went home by car.

I was afraid that I might hurt his feelings.I was afraid of .

单调可导函数的导函数必单调.

A. 对
B. 错