通信工题库汇编 20

电路中两点间的电压高，则( )。

发布于 2021-03-23 11:47:59

【单选题】
A 两点的电位高
B 两点间的电位差大
C 两点的电位一定为正
D 两点的电位一定为负

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舅姥爷 2023-03-23

专业摄影器材、旅拍婚礼策划

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