问题

The gravity on the earth is much ______ that on the moon, do you know why?

A:as strong as
B:strong than
C:so strong than
D:stronger than

正确答案是：

同类题型

Lin Yu often talks in class. His teacher _______him.

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It was a pity that the great writer died _______hisworks unfinished

He came into the classroom _____ [ ]