In his experiments with gravity, Isaac Newton showed how the motion of each planet in the solar system results from the combined gravitational pull of the Sun and of all the other planets, each contributing according to their mass and distance from the others. A. of all the other planets, each contributing according to their B. of all the other planets, with each of them contributing according to their C. all the other planets, each of which contributing according to its D. all the other planets, each contributing according to its E. all the other planets, each of which contribute according to their
这道题的指代问题可以理解 就是有一个细节问题不太明晰
两个部分并列介词是不用补出的吗? 除去别的错误不看我认为这里应该是gravitational pull of the sun and of all other planets 才对啊
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