问题
多项选择题
直流事故照明仅由蓄电池供电时,其网络电压宜为()V。
A.380
B.220
C.110
D.36
答案
参考答案:B, C
直流事故照明仅由蓄电池供电时,其网络电压宜为()V。
A.380
B.220
C.110
D.36
参考答案:B, C
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