低压电工-选择

不接地系统中，如发生单相接地故障时，其他相线对地电压会（）。

发布于 2021-03-13 01:18:29

【单选题】
A 升高
B 降低
C 不变

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阿银。 2023-03-13

这家伙很懒，什么也没写！

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