题目

某电场中的电场线分布如图3所示，A、B为电场中两点，一正电荷放于A、B两点时，受到电场力大小分别为FA和FB，电势能分别为EPA和EPB，则（  ） A．FA＞FB，EPA＞EPBB．FA＜FB，EPA＜EPB C．FA＜FB，EPA＞EPB D．FA＞FB，EPA＜EPB       答案：D  —My teacher says she’s canceling the class play. I just can’t understand. —____ .You were looking forward to it. A.It doesn’t matter　　　　　　 B.It’s very unwise of her　 C.Don’t worry about it　　　　 D.You must be disappointed