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GRE阅读题目解析:间接气象学

2017-03-30 08:39:00来源：新东方在线整理

　　【GRE阅读题目解析:间接气象学】GRE考试考什么？GRE阅读是重点。新东方在线GRE频道为大家带来GRE阅读题目解析:间接气象学，答案见下一页，希望对大家GRE备考有所帮助。更多精彩尽请关注新东方在线GRE频道!

　　查看全部：GRE阅读答案解析(汇总)

　　GRE阅读题目解析:间接气象学

　　P5

　　Scientists have sought evidence of long-term solar periodicities by examining indirect climatological data, such as fossil records of the thickness of ancient tree rings. These studies, however, failed to link unequivocally terrestrial climate and the solar-activity cycle, or even to confirm the cycle's past existence. (45 words)

　　13. It can be inferred from the passage that studies attempting to use tree-ring thickness to locate possible links between solar periodicity and terrestrial climate are based on which of the following assumptions?

　　(A) The solar-activity cycle existed in its present form during the time period in which the tree rings grew.

　　(B) The biological mechanisms causing tree growth are unaffected by short-term weather pat terns.

　　(C) Average tree-ring thickness varies from species to species.

　　(D) Tree-ring thicknesses reflect changes in terrestrial climate.

　　(E) Both terrestrial climate and the solar-activity cycle randomly affect tree-ring thickness.

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