下列四种做法中不符合安全用电原则的是a.将开关安装在灯泡和火线之间b.�生触电事故后先切断电源再�人c.用湿抹布擦拭正亮着的台灯灯泡d Template




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tomski下列四种做法中不符合安全用电原则的是a.将开关安装在灯泡和火线之间b.�生触电事故后先切断电源再�人c.用湿抹布擦拭正亮着的台灯灯泡d coloring