题目

小明按图甲所示的电路进行实验，当闭合开关用电器正常工作时，电压表V1和V2的指针位置完全一样，如图乙所示，则L2两端的电压为V，L1两端的电压为V. 答案：【1】2【2】8Jane tried to keep up a calm appearance，but her trembling voice ________. A．gave her away 　　　 B．gave her out C．gave her in 　　　　 D．gave her up