83. Any medical test will sometimes fail to detect a condition when it is present and indicate that there is one when it is not. (A) a condition when it is present and indicate that there is one (B) when a condition is present and indicate that there is one (C) a condition when it is present and indicate that it is present (D) when a condition is present and indicate its presence(C) (E) the presence of a condition when it is there and indicate its presence 答案是C 这道题看了前人解释,越看越糊涂啊? 看NN总结说,从句的it做主语时优先指代主句主语,可是这里it为什么就近指代condition呢? 请指教!
[此贴子已经被作者于2007-6-28 11:24:05编辑过] |