515.Most energy analysts now agree that the costs of building and maintaining nuclear reactors are too high for nuclear power to likely prove cheaper than coal or oil in the long run.
(A) too high for nuclear power to likely
(B) high enough for nuclear power to be unlikely to
(C) high enough that it is unlikely nuclear power will
(D) so high that nuclear power is unlikely to(D)
(E) so high as to be unlikely that nuclear power will
我答案是选对了,但我不明白A里的too--to为什么错,大家对too--to的用法有好的建议吗?请多多指教呀 |