单选题:矿井工程井下文明施工应当(  )。

题目内容:
矿井工程井下文明施工应当(  )。 A.将施工的泥浆水排入河流,防止污染环境
B.保证水沟畅通,盖板齐全、稳固、平整
C.将井下排出的废石堆放在生活区附近
D.采取提高风速的办法来降低风尘

参考答案:
答案解析:

Anny: Do you still have a headache, Mike?Mike: Yes, I do. An

Anny: Do you still have a headache, Mike?Mike: Yes, I do. And now I have a feve

查看答案

It is difficult for us to explain phenomena that we have lit

It is difficult for us to explain phenomena that we have little or__________ dir

查看答案

施工单位对行政处罚不服,申请行政复议应当自知道该处罚之日起(  )提出。

施工单位对行政处罚不服,申请行政复议应当自知道该处罚之日起(  )提出。 A.60天内 B.六个月内 C.1年内 D.2年内

查看答案