1.It is said the gravity on Mars is only about ( ) of the gravity on earth.A.three-eighths B.third-eighth C.three-eightsD.third-eight
问题描述：
1.It is said the gravity on Mars is only about ( ) of the gravity on earth.
A.three-eighths
B.third-eighth
C.three-eights
D.third-eight
答
B
答
几分之几用这个结构:基数词＋序数词
其中基数词表示分子，序数词表示分母。
十分之一 one-tenth
八分之三 three-eighth
答案都不对
答
A