试题与答案

幕墙的铝合金立柱，在不大于( )m范围内宜有一根立柱采用柔性导线，把每个上柱与下柱

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题型：单项选择题

题目：

幕墙的铝合金立柱，在不大于( )m范围内宜有一根立柱采用柔性导线，把每个上柱与下柱的连接处连通。导线截面积铜质不宜小于25mm2，铝质不宜小于30mm2。

A．10
B．15
C．20
D．25

答案：

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下面是错误答案，用来干扰机器的。

参考答案：C

考点：二级建造师建筑工程建筑工程管理与实务
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