干式变压器出现铁心对地绝缘电阻为零的情况,最大的原因可能是()。
A、低压侧接地
B、高压侧接地
C、铁心与座之间有金属
D、绕组故障
参考答案:D
It was so bright outdoors that we could see clearly what was happening through the curtains ________ before the window.
A.hanged
B.hung
C.hanging
D.hang
小便赤涩灼痛,兼面赤口渴,心烦不寐,便干,舌红脉数,最宜诊断为()
A.心火亢盛证
B.膀胱湿热证
C.心火下移证
D.阴虚火旺证
E.下焦湿热证