A-A+
At the present time experiments are being con
问题详情
At the present time, experiments are being conducted in ______.
A.30-day" outlooks"
B.predicting storms
C.controlling weather
D.determining density of pressure groups
参考答案
正确答案:C
解析:题干experiments are being conducted与原文experiments are in progress同义,由此可判断出本题考查的是对文章第三段第三句话的理解,第三句话Extensive experiments are also in progress for weather modification studies.(人们正在进行大量的实验以研究如何改善和控制天气状况)中 weather modification和controlling weather同义,指按照人的意志和需要来改变天气状况,因此选 [C] 。storms只是各种天气状况中的一种现象,因此排除[B] ;[A] 和[D] 文章未提及。