【单选题】【消耗次数：1】
71、（ ）与超前平巷间的联系方式，主要根据煤层倾角和区段平巷的布置形式确定有石门、斜巷和立眼三种。
①
区段集中巷
②
区段运输平巷
③
区段回风平巷
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相关题目
【单选题】
74、在区段运输平巷和轨道平巷之间留设区段煤柱，对于一般煤质和围岩条件的近水平、缓斜及倾斜煤层，薄及中厚煤层不小于（ ）m。
①
8~15
②
15~20
③
20~30
【单选题】
51、采用倾料式布置方式时，上区段的分层运输平巷与下区段的分层回风平巷之间常留有区段煤柱，煤柱尺寸视煤层厚度、倾角、煤质松软程度等因素而定，一般情况下煤柱宽度不小于（ ），或更大。
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5m
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52、（ ）布置就是将下分层平巷置于上分层平巷内侧，即处于上分层采空区下方，形成正梯形的区段煤柱。各分层平巷内错半个至一个巷道宽度。
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水平式
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because
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thinking
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Yes, it was rich and colorful
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No, it is interesting
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I like my college very much
④
yes, it is.
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seems to be
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must be
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remains
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take
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①
making
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make
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made
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be made
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①
advantage
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disadvantage
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④
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①
lifelong
②
formal
③
distance
④
far
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①
room
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vacancy
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place
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①
useful
②
available
③
easy
④
careful