It may someday be worthwhile to try to recover uranium from seawater, but at present this process is prohibitively expensive
(A) It may someday be worthwhile to try to recover uranium from seawater
(B) Someday, it may be worthwhile to try and recover uranium from seawater
(C) Trying to recover uranium out of seawater may someday be worthwhile
(D) To try for the recovery of uranium out of seawater may someday be worthwhile
(E) Recovering uranium from seawater may be worthwhile to try to do someday
请教A和C的区别
The suspect in the burglary was advised of his right to remain silent, told he could not leave, and was interrogated in a detention room.
(A) of his right to remain silent, told he could not leave, and was
(B) of his right to remain silent, told he could not leave, and
(C) of his right to remain silent and that he could not leave and
(D) that he had a right to remain silent, could not leave, and was
(E) that he had a right to remain silent, that he could not leave, and was
答案是B,但是interrogated 和什么平行呢?感觉A比较好,
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