GCTGCT英语2009年GCT真题 A卷 第四部分 外语运用能力测试(英语)
题目内容

By 2050 the world will have about 2 billion people aged over 60, three times _________ today.

2024-07-05

A.as much as

B.as that of

C.as many as

D.as those of

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