偶觉的应该选A! 原因有二: 1、如果是情态动词would + have, 当这个have 是助动词,则后面省略的结构中,必须保留would;如果have是实意动词,则后面省略的结构要写成do (大全中有道题,如下,就是属于第二种情况) 本题中have 是实意动词,则后面的they do 肯定是指have,那不符合逻辑了啊。所以CDE都排除了 2、B中的do可以指have也可以指know ,最好省略以免产生歧义,且B 中的economical好像是便宜的意思,不符合原文所说从社会和经济的角度啊! 这道题有讨论结果么?到底答案是什么啊? 大全中的题目: The guiding principles of the tax plan released by the Treasury Department could have even a greater significance for the economy than the particulars of the plan. (A) even a greater significance for the economy than (B) a significance that is even greater for the economy than have (C) even greater significance for the economy than have (D) even greater significance for the economy than do (D) (E) a significance even greater for the economy than have |