在“人纲不闲，乌兽为群”中，“闲”之义为（）
A.空闲
B.熟悉
C.间断
D.问讯
参考答案：B
—I’ve studied growing plants as one of my interests. Could I make some suggestions?
—______.
A．You will make it
B．Go right ahead
C．Don’t mention it
D．Take it easy
氧中毒后出现失明多见于
A．新生儿B．婴幼儿C．青少年D．中青年E．老年人
