A.触点KM1和KM2因未接入电路均处于断开状态 B.触点KM1闭合,KM2不变 C.触点KM1闭合,KM2断开 D.触点KM1不变,KM2断开

A.触点KM1和KM2因未接入电路均处于断开状态 B.触点KM1闭合,KM2不变 C.触点KM1闭合,KM2断开 D.触点KM1不变,KM2断开

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