Unlike the short flights of the shuttle and earlier spacecraft, which carried sufficient power in fuel cells and batteries, a permanently orbiting space station will have to generate its own electricity.
A. the short flights of the shuttle and earlier spacecraft, which carried sufficient power in fuel cells and batteries B. the shuttle and earlier spacecraft, with sufficient enough power in fuel cells and batteries for their short flights C. the short flights of the shuttle and earlier spacecraft, which enabled them to carry sufficient enough power in fuel cells and batteries D. the shuttle and earlier spacecraft, which were capable of carrying sufficient power in fuel cells and batteries for their short flights E. the flights of the shuttle and earlier spacecraft, whose shortness allowed them to carry sufficient power in fuel cells and batteries 这道题为什么选D呢? B错在哪儿了?看过以前的帖子说是with的夹心错误,但是with短语里用得是their ,肯定是修饰前面的两个名词,而不是后面,所以恳请NN再帮忙解释一下,D为什么比B好呢? |