一侧发电厂、一侧的线路送电操作，一般在哪侧充电描述不正确的是（）。
A.发电厂
B.变电站
C.任一侧
D.短路电流小的一侧
参考答案：A, C, D
We are going to have fun ____ English together.
A．to learn
B．learning
C．learn
D．learnt
Betty had nothing for breakfast, ____________? [ ]
A. hadn't she
B. had she
C. didn't she
D. did she
