A:①②③④
B:②③①④
C:②①③④
D:③②①④
Our geography teacher told us the sun _______ in the east and sets in the west.
如图所示,将一个带正电的小球Q放在本身不带电的枕型导体AB靠近A端一侧,由于静电感应枕型导体的A,B两端分别出现﹣、+感应电荷.则以下说法中正确的是( )