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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 【查看更多】

     

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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

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