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GWD-18-Q19 ：
New genetic evidence—together with recent studies of elephants’ skeletons, tusks, and other anatomical features—provide compelling support for classifying Africa’s forest elephants and its savanna elephants as separate species.
A.provide compelling support for classifying
B.provide compelling support for the classification of
C.provides compelling support to the classification of
D.provides compelling support for classifying
E.provides compelling support to classify
GWD-28-Q1：
Scientists claim that the discovery of the first authenticated mammal bones in amber could provide important clues of determining, in addition to how, when mammals colonized the islands of the West Indies.
A.of determining, in addition to how, when mammals colonized the islands of the West Indies
B.in the determination of how and when the islands of the West Indies were colonized by mammals
C.to determine how mammals colonized the islands of the West Indies and when they did
D.for determining when the islands of the West Indies were colonized by mammals and how they were
E.for determining how and when mammals colonized the islands of the West Indies
这两道题都考了provide sth for这个词组，有共通之处。 好像仅凭这一点就能选出答案呀！
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发表于 2011-5-9 19:19:10
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