题目内容：

新概念英语第三册18课Multiple choice答案
各位要新概念英语第三册18课的Multiple choice question
重点讲下第9题
好了加分啊o(∩_∩)o...
electric current in modern art
课文自己看吧太长了
第九个是：-forms that are suspended from the ceiling and move( )are……
(a) at one blow (b) all of a sudden (c)with a light touch
(d)at the slightest breath