题目内容

应急广播设计中,下面各题中哪个答案是正确的。火灾应急广播扬声器应按()的要求设置。

A. 民用建筑公共场所内的扬声器额定功率不应小于8.5w
B. 民用建筑公共场所内的扬声器间距不应超过30m
C. 火灾应急广播可与广播音响系统合用
D. 火灾应急广播应设备用扩音机

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