【判断题】在纯电容电路中,电压在相位上滞后电流π/2。
【判断题】在交流电电路中,纯电容上电压超前电流相位90°。
【单选题】— _____ are your trousers? — Black. [ ]
【单选题】This pair of trousers ____ Lucy's. Your trousers ____ on your bed.
【判断题】在交流电电路中,纯电容上电流与电压相位相差90°。
【单选题】Your trousers____ dirty.You must have____ washed.
【单选题】Your trousers ____dirty, you must have _____washed.
【判断题】在交流电电路中,纯电容上电压滞后电流相位90°。
【简答题】纯电容电路中,电流在相位上()电压90°。