【单选题】
巡视检查变压器的呼吸器中的硅胶，发现它___后，应安排更换。
A. 全变色；
B. 有2/3变色；
C. 有1/3变色；
D. 有1/2变色；
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答案
B
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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