两道题目答案有困惑....

gmatziyu

255. (29858-!-item-!-188;#058&004408) (GWD-12-Q19)
Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.
A. Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.
B. An executive who is heavily committed to a course of action, especially one that worked well in the past, makes missing signs of incipient trouble or misinterpreting ones likely when they do appear.
C. An executive who is heavily committed to a course of action is likely to miss or misinterpret signs of incipient trouble when they do appear, especially if it has worked well in the past.
D. Executives’ being heavily committed to a course of action, especially if it has worked well in the past, makes them likely to miss signs of incipient trouble or misinterpreting them when they do appear.
E. Being heavily committed to a course of action, especially one that has worked well in the past, is likely to make an executive miss signs of incipient trouble or misinterpret them when they do appear.

答案：e
但是觉得c正确。之前GWD答案给的也是C...到底是哪一个呢？

245. (25627-!-item-!-188;#058&001618) (GWD-18-Q11)
In no other historical sighting did Halley's comet cause such a worldwide sensation as did its return in 1910–1911
A. did its return in 1910–1911
B. had its 1910–1911 return
C. in its return of 1910–1911
D. its return of 1910–1911 did
E. its return in 1910–1911

之前GWD给的是a, prep答案是C....困惑中....



241. (28408-!-item-!-188;#058&003009) (GWD-9-Q39)
Over 75 percent of the energy produced in France derives from nuclear power, while in Germany it is just over 33 percent
A. while in Germany it is just over 33 percent
B. compared to Germany, which uses just over 33 percent
C. whereas nuclear power accounts for just over 33 percent of the energy produced in Germany
D. whereas just over 33 percent of the energy comes from nuclear power in Germany
E. compared with the energy from nuclear power in Germany, where it is just over 33 percent

这题答案有的是C有的是D....困惑中......