规程规定，装设和拆除接地线，至少应由（）进行 A.一人 B.三人_爱下问搜题

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问题单项选择题

规程规定，装设和拆除接地线，至少应由（）进行

A.一人

B.三人

C.两人

D.四人

答案

参考答案：C

选择题

He lost both of his parents in the big earthquake, but for him, a kind couple adopted him and took good care of him.

A．suddenly

B．naturally

C．obviously

D．luckily

问答题简答题

试用期期限有何规定？