题目内容

When you first meet someone, what you should say?

A. Hello, this is...
B. Sorry, it is my fault.
C. Time to go.

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If you meet someone that you should met before, you should say...?

A. Forget it.
B. I have met you before.
C. It is really a big day.

If you meet someone that you think met before, what you should say?

A. Forget it.
B. I think we have met before.
C. It is really a big day.

在单向拉伸、扭转与单向压缩实验中，应力状态软性系数的变化规律是（）

A. 单向拉伸>扭转>单向压缩
B. 单向拉伸>单向压缩>扭转
C. 单向压缩>扭转>单向拉伸
D. 扭转>单向拉伸>单向压缩

初始化数组 int a[4]={1,7,2,4}; 则a[0]的值为 _______。