题目内容

阐述我国建立社会保障制度的必要性。

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1（）

A. Yes, we’ll meet.
B. Of course, we will.
C. How about tomorrow
D. At the school gate.

What is the rule about attendance at lectures

A. It is optional.
B. It is necessary.
C. It is difficult to enforce.

( )校园生活 ( )英语角

带电作业需要停用重合闸时，应由变电运行值班员履行许可手续。