GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - FO54745WVRY5Q5H0J

It can be inferred that the primary purpose of the models included in the study discussed in the second paragraph of the passage was to A. predict future changes in the world's climate B. predict the effects of cloud systems on the world's climate C. find a way to prevent a disastrous planetwide temperature increase D. assess the percentage of the Earth's surface covered by cloud systems E. estimate by how much the amount of carbon dioxide in the Earth's atmosphere will increase