题目内容 (请给出正确答案)
提问人:网友l******8 发布时间:2022年3月18日 23:58
[单项选择题]

ZYJ7-220/1800电液转辙机单线电阻不大于()。

A、30Ω

B、45Ω

C、54Ω

D、58Ω

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