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. B: the shuttle and earlier spacecraft, with sufficient enough power in fuel cells and batteries for their short flights. D: the shuttle and earlier spacecraft, which were capable of carrying sufficient power in fuel cells and batteries for their short flights. A我知道是逻辑主语错 但是BD不会排除 答案是D 感觉D中的which 指的是spacecraft,而实际应该指 the shuttle and earlier spacecraft, 也不对吧. 求高手指点
我不知道我这样想对不对,我当时做的时候是通过enough来排除的,在赵丽网络课堂上她说过enough<able、capable,另外就是我觉得B的意思也不太对,应该不是the shuttle and earlier spacecraft有sufficient enough power in fuel cells and batteries ,而是它们能够carry sufficient power in fuel cells and batteries