题目内容

It is the third time that I ()here.

A. was
B. am
C. have been
D. had been

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If I had hurried, I （）the plane.

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The chair looks rather hard, but in fact it is very comfortable to ()

A. sit
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在程序中有这样的一条命令： DO FORM AI WITH A,B A和B的值将传给______事件过程。

A. Load
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C. 关系数据库查询语言
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