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        1. We all know that dinosaurs lived on the Earth more than ______ years ago.

          A.sixty million B.millions of C.sixty million of D.million of 

          A

          解析試題分析:句意:我們都知道六千萬多年前恐龍曾經(jīng)在地球上生存。million、hundred等數(shù)詞在表示具體的數(shù)值時,要用單數(shù)。millions of則表示數(shù)百萬的意思。故選A。
          考點: 考查數(shù)詞的用法。

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