117. No less an authority than Walter Cronkite has reported that half of all Americans never read a book.

(A) No less an authority than

(B) Nonetheless an authority

(C) Nevertheless authoritarian

(D) Not less an authority than

(E) An authority not less than

答案是A. 呵呵, 估计太简单了, 可是偶就是想不通其他几个错在哪里.........

No less......than.......:连.......都.......。 no less...than... 类似于no less than是惯用法，否定表示肯定。另外四个选项没有这种肯定的语气。

no less（....） than 和 not less（....） than意思是不一样的,后者是否定。

视同副词6. No less remarkable than the development of the compact disc has been the use of the new technology to revitalize, in better sound than was ever before possible, some of the classic recorded performances of the pre-LP era.

视同形容词9. No less an authority than Walter Cronkite has reported that half of all Americans never read a book.

偶自个总结的，不一定正确~~~仅供参考