煤矿企业安全生产

《煤矿安全规程》第五十七条规定：采煤工作面放顶人员必须站在支架完整无( )等危险的安全地点工作。

发布于 2021-03-23 18:25:03

【多选题】
A 崩绳
B 崩柱
C 甩钩
D 断绳抽人

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杨子 2023-03-23

给我一个不努力成为资本家的理由？

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阿银。

这家伙很懒，什么也没写！

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