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直流系统U+=0而U>U->0说明()

  • A、负极绝缘良好而正极绝缘下降;
  • B、负极绝缘良好而正极接地;
  • C、两极同接地;
  • D、两极绝缘同等下降;
  • E、两极绝缘良好;
  • F、正极绝缘良好而负极接地。

参考答案

更多 “直流系统U+=0而U>U->0说明()A、负极绝缘良好而正极绝缘下降;B、负极绝缘良好而正极接地;C、两极同接地;D、两极绝缘同等下降;E、两极绝缘良好;F、正极绝缘良好而负极接地。” 相关考题
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