题目内容

拉合隔离开关时,断路器必须在断开位臵,并经核对编号无误后,方可操作。严禁带负荷操作隔离开关。()

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This speech has an impact in his later life.()

零序电流互感器是电流型漏电保护装臵的检测元件。()

When Chopin was sixteen, he attended the Warsaw Conservatory of Music, directing by composer Joseph Elsner.()

当附加导线与接触网同杆合架时,保护线与支柱边沿的距离应不小于()m

A. 0.4
B. 0.8
C. 1
D. 1.2

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