题目

如图所示，水平静止放置的易拉罐会向摩擦过的塑料管滚动，可知它们之间存在() A . 电荷间相互吸引力 B . 电荷间相互排斥力 C . 磁极间相互吸引力 D . 磁极间相互排斥力 答案：A20. The reason ________ many people like the film Not One Less is ________ most of the people in the film use their real names and play themselves.A．why; becauseB．for; thatC．for; becauseD．why; that