试题与答案

对于提升高度超过12m的自动扶梯，应增设附加急停装置，附加急停装置之间的距离不应超过

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题型：单项选择题

题目：

对于提升高度超过12m的自动扶梯，应增设附加急停装置，附加急停装置之间的距离不应超过（）。

A.18m

B.12m

C.20m

D.15m

答案：

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