We may find that learning a foreign language does not have to be learning our mother tong

We may find that learning a foreign language does not have to be learning our mother tongue, but can in fact be as easy.
A. twice harder as
B. as twice hard as
C. twice as hard as
D. as twice hard

A. twice harder asB. as twice hard as(答案→)C. twice as hard asD. as twice hard解析：这题考查倍数的表达，倍数+as adj as的用法，A项应该是twice harder than，C、D项都是顺序错了，选C。

我也是这个答案

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