题目

She went ______ a drive after work last Friday. A．to                         B．for                         C．in                         D．by 答案：B（2013?宁德）如图所示电路，开关闭合时观察到：L1和L2两灯均不亮，电流表几乎无示数，电压表示数接近电源电压．其原因是灯L1断路灯L1断路．