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
b的their指代模糊,会有歧义,有歧义属于correctness(准确性错误),也就是影响句子意思的。
d的be capable of虽然累赘,但属于effectiveness(简洁性错误)
所以,根据考虑问题时优先排除准确性错误的原则,应把b排除。
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