A:从高楼上向下扔垃圾
B:小商贩故意将杆秤的秤砣磨小
C:电影道具倒塌的高楼用密度小的材料做
D:课间同学们蜂拥进入教室
如图漫画说明( )
当你到一个陌生的城市旅游时,你应选择( )
A stupid man tells a woman to shut up, while a wise man tells her that her mouth is quite beautiful _______ it is closed.