55. Doctors generally agree that such factors as cigarette smoking, eating rich foods high in fats, and alcohol consumption not only do damage by themselves but also aggravate genetic predispositions toward certain diseases. A. not only do damage by themselves but also aggravate B. do damage by themselves but also are aggravating to C. are damaging by themselves but also are aggravating D. not only do damage by themselves, they are also aggravating to E. are doing damage by themselves, and they are also aggravating 答案是A , 但是为什么NOT ONLY do damage 没有和 BUT ALSO aggravate 严格对称, 我记得有人说过这种结构需要严格对成,但是这个句子好像没有,( do)aggravate???????? |