242. Even their most ardent champions concede that no less than a technical or scientific breakthrough is necessary before solar cells can meet the goal of providing one percent of the nation's energy needs.
(A)that no less than a technical or scientific breakthrough is necessary
(B)that nothing other than a technical or scientific breakthrough is needed
(C)that a technical or scientific breakthrough is necessary
(D)the necessity for an occurrence of a technical or scientific breakthrough
(E)the necessity for a technical or scientific breakthrough occurring
答案是C，根据OG的解释双重否定是冗余表达，这好像和ETS一贯思路不一致的说。作者: qiqi 时间: 2003-8-22 08:20
我个人认为因为句子开头有EVEN 和 THE MOST所以语气已经很强烈了故NO LESS THAN 多余。
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