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population作為整體作主語時.謂語動詞用單數(shù)形式.如果就其中某部分而言.謂語動詞用復(fù)數(shù)形式.也就是說出現(xiàn)分?jǐn)?shù).百分?jǐn)?shù)修飾名詞.那么謂語動詞的單復(fù)數(shù)形式要根據(jù)名詞的形式和意義來決定.如Two thirds of the books are about science. 而Two thirds of the book has been finished. 查看更多

 

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It is the prevention of disease ________ its successful treatments that has led to the rapid increase of the world's population.

[  ]

A.rather than
B.not only
C.but also
D.less than

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