问题
选择题
It is said that the gravity on Mars is only about ________ if the gravity on earth. [ ]
A. three-eighths
B. third-eighth
C. three-eights
D. third-eight
答案
答案：A
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It is said that the gravity on Mars is only about ________ if the gravity on earth. [ ]
A. three-eighths
B. third-eighth
C. three-eights
D. third-eight
答案：A