单项选择题
A.高压侧 B.低压侧 C.高低压两侧 D.一侧
A.5% B.10% C.15% D.20%
A.气体绝缘 B.液体绝缘 C.固体绝缘
A.0.5m B.0.7m C.1.5m D.1m
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