Every morning when we wake up, we have two choices. We can choose      to be in a good emotion      to be in a bad emotion. Why not choose the positive side of life?

A. neither, nor     B. either, or         C. not only, but also

不是电阻电路并联特点的是：（）

A、各分路两端的电压相等

B、总电流等于各分路电流之和

C、各分路电流相等

D、总电阻的倒数等于各分路电阻倒数之和