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题目
题型:不详难度:来源:
We all know that dinosaurs lived on the Earth more than ______ years ago.
A.sixty millionB.millions ofC.sixty million ofD.million of

答案
A
解析

试题分析:句意:我们都知道恐龙在地球上生存在6千万年前。表示确切数字,million不用复数;表示概数,million必须用复数,并且和介词of连用,所以选A。
核心考点
试题【We all know that dinosaurs lived on the Earth more than ______ years ago.A.sixty】;主要考察你对钟点等知识点的理解。[详细]
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