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插座安装完毕后需通电检测接线数序,以下正确的接法是:( )

单选题
2021-09-01 22:45
A、220V电源可以随意接线
B、左火右零上接地
C、上火左零右接地
D、左零右火上接地
查看答案

正确答案
D

试题解析

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