浮充时全组各电池端电压的最大差值不大于（）V。
A、0.1
B、0.03
C、0.02
D、0.05
参考答案：D
Tom and I had each a bedroom, and a third room ____ as our study.
A．in common
B．in common with
C．out of the common
D．by common
問題2
