ChaseDream

标题: [求助]大全670 [打印本页]

作者: 蓝露    时间: 2008-9-29 23:26
标题: [求助]大全670

Stars like the sun can continue to shine steadily for billions of years because its light and heat are produced by nuclear fusion, in which titanic releases of energy result in the loss of only tiny amounts of mass.

(A) its light and heat are produced by nuclear fusion, in which

(B) nuclear fusion produces its light and heat, in which

(C) nuclear fusion produces their light and heat, where

(D) its light and heat are produced by nuclear fusion, where

(E) their light and heat are produced by nuclear fusion, in which

为何选E啊?没找到以前的讨论~谢谢NN回答~


作者: vieri_k    时间: 2008-9-30 08:01
因为stars 是复数,所以用their





欢迎光临 ChaseDream (https://forum.chasedream.com/) Powered by Discuz! X3.3