【单选题】【消耗次数：1】
火灾报警控制器安装在墙上时，其底边距地面高度宜为（? ?）。
①
1.2米
②
1.3米
③
1.0米?
④
0.5米
⑤
1.3-1.5米
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相关题目
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水准点高程为24.397米，测设高程为25.000米的室内地坪。设水准点上读数为1.445米，则室内地坪处的读数为（ ）米。
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