【单选题】
示信号装置了解变压器的___状况。
A. 运行；
B. 停运；
C. 投运；
D. 实验；
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答案
A
解析
暂无解析
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【单选题】
绝缘子可分为___。
A. 电站绝缘子和电器绝缘子2种；
B. 电站绝缘子和线路绝缘子2种；
C. 线路绝缘子和电器绝缘子2种；
D. 电站绝缘子.电器绝缘子和线路绝缘子3种；
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