标题: OG11-107,求教 [打印本页] 作者: overmatch 时间: 2010-7-22 16:13 标题: OG11-107,求教 In his research paper, Dr. Frosh, medical director of the PWC, distinguishes mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis. C.between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis
后面OG的解释说"distinguish A from B"是不对的，只有"distinguish between A and B".而且说their应该被省略。 请教：disntinguish A from B为什么不对？字典里面也查得到啊。然后为什么their一定要去掉？作者: foreverdr 时间: 2010-7-22 18:57
厄。我不成熟的见解。 distinguish A from B 是从B中辨别出了A 而distinguish between A and B 是 区分A和B 根据句意 在他的paper里 他只能区分出了A和B(告知读者两者的区别）并不能在他的paper中由B辨别出了A。 而their必须去掉 我觉得加上很累赘不是麽。如果加上 那麽这个their指的是什麽呢？ hope this helps. : )作者: loverwy 时间: 2010-7-22 22:47
A答案主要错在"without their being grounded". 在 Gmat里，