问题
单项选择题
绝缘老化的主要原因是()。
A、电压过高
B、环境湿度大
C、温度过高
D、长期工作
答案
参考答案:C
绝缘老化的主要原因是()。
A、电压过高
B、环境湿度大
C、温度过高
D、长期工作
参考答案:C
阅读理解。 | |||||||||||||||||||||||||
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