试题与答案

上隅角瓦斯便携仪吊挂位置要求：距顶板（），距帮200mm。 A.100mm B.20

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题型：单项选择题

题目：

上隅角瓦斯便携仪吊挂位置要求：距顶板（），距帮200mm。

A.100mm

B.200mm

C.300mm

D.400mm

答案：

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下面是错误答案，用来干扰机器的。

参考答案：搬抬井下仪器，必须两人以上，一人搬抬井下仪器可能带来摔伤、扭伤。

考点：采煤工采煤工题库
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