下列现象中与人类活动关系不大的是

题干

下列现象中与人类活动关系不大的是（）

A：气候变暖

B：臭氧空洞

C：地震

D：DDT在土壤中残留

上一题下一题 0.0难度选择题更新时间:2015-04-04 10:49:40

C

听短文, 根据短文内容完成下列表格。

Things some people do on the __（1）____	they spend only ____（2）____.
	They ___（3）____ to give their seats to the old people without listening to the ticket sellers.
	Be ___（4）____ and help the persons in need of help.
Things we should do	Give your seats to the people with ____（5）____ and let old people get on or get off before you.