单选题我国根据发生触电危险的环境条件将安全电压界定为三个等级，高度危险的建筑物中其安全电压为（）V。A2.5B12C36D65
单选题
我国根据发生触电危险的环境条件将安全电压界定为三个等级，高度危险的建筑物中其安全电压为（）V。
A
2.5
B
12
C
36
D
65
参考解析
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