|
如题:
In his experiments with gravity, Issac 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 contributing according to their
我以为D比较好,但是也有人说B对.请各位多多指点.非常感谢! | 
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2004-8-17 16:33:00
楼主
