问题
选择题
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
答案
答案：D
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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
答案：D