关于零电位,交流电等等问题的提问,本人是个学电的大专生,但是大专过的迷迷糊糊,现在都快毕业实习了,还是甚至一窍不通,是个小白类型,1.\x09有一种说法:地球是带负电荷的所以形成雷电.

来源:学生作业帮助网 编辑:作业帮 时间:2024/09/17 17:18:56
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