【简答题】阅读理解。 Once Effendi had a joke with the Prime Minister (). He said that the Minister would die the next day. The next day, the Minister fell to the ground from the horse and really died. When the kin...
【判断题】交流接触器的额定工作电压或电流是指主触点的工作电压或电流,它应小于或等于被控制电路的最大电压或最大电流。()
【单选题】交流接触器的额定工作电压或电流是指()。
【简答题】A.generation B.mention C.memory D.metallic
【单选题】交流接触器的额定工作电压和电流是指其主触点的电压电流,( )
C.
它应大于被控电路额定电压和额定电流的一倍以上
D.
它应大于被控电路额定电压和额定电流的两倍以上