【简答题】电路如图所示,试用电源模型等效变换方法求图(a)中的电压U,则U= ________V。
【单选题】选出本句中的定语:The man downstairs was trying to sleep.
【单选题】如图所示电路中,已知直流电压U1=3V,二极管的正向压降为0.7V,试求U0.
【单选题】挑出句中的定语:The man downstairs was trying to sleep.
【单选题】选出句中的定语。 The man downstairs was trying to sleep.
【单选题】Father is a typical referee in children disputes.
【单选题】如图所示电路中,已知直流电压U1=3V,二极管的正向压降为0.7V,试求U0.
【单选题】挑出下列句中的定语。 The man downstairs was trying to sleep.
【简答题】定语The man downstairs was trying to sleep.
【单选题】找出句中定语 The man downstairs was trying to sleep.