Please Listen to the following TED talk and answer the questions followed.（3分08秒-4分02秒）The paper lead the speaker testifying to Congress in the 1980’s， testimony in which he emphasized that global warming increases

A.increases both extremesof the Earth'；s water cycle

B.Rainfall will becomein less extreme events

C.There will be stronger storms

D.Only heatwaves and droughts on one hand，directly from the warming

正确答案：increases both extremesof the Earth'；s water cycle