GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - U14J14U0WOWJI61ZJ

In the final paragraph of the passage, the author is concerned primarily with A. answering a question about Earth's climatic history B. pointing out a potential flaw in Bond's hypothesis C. suggesting a new focus for the study of ocean sediments D. tracing the general history of Earth's climate E. discussing possible implications of Bond's hypothesis