一道语法题的讨论，请NN指教

ssss

In his experiments with gravity, Isaac Newton showed how the motion of each planet in the solar system results form the combined gravitational pull of the Sun and of all the other planets, each contributing according to their mass and distance from the others.

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

这道题选B还是D？

tulipmontreal

选D 我的道理是这样的: 由于存在COMBINED说明是后面2者的共同作用, 不需要加OF, 另外很明确的一点就是只能用ITS, 指代EACH PLANET(MOTION后面那个)

Emilychenlu

ssss 发表于 2004-6-3 15:06
In his experiments with gravity, Isaac Newton showed how the motion of each planet in the solar syst ...

答案是D，但是C为什么不对啊？ 有人说which指代不清，但是我觉得没有指代不清，肯定是other planets的。还是仅仅是因为简洁的问题。

kiwifoodtown

Emilychenlu 发表于 2013-8-26 09:56
答案是D，但是C为什么不对啊？ 有人说which指代不清，但是我觉得没有指代不清，肯定是other planets的。 ...

请认真学习有关从句的基础知识。

Emilychenlu

Emilychenlu 发表于 2013-8-26 09:56
答案是D，但是C为什么不对啊？ 有人说which指代不清，但是我觉得没有指代不清，肯定是other planets的。 ...

你就不能说说吗，哎。

kiwifoodtown

Emilychenlu 发表于 2013-8-26 14:44
你就不能说说吗，哎。

都说的够明白了，each of which 引导从句，所以要你学习下有关从句的知识了。