GRE Text Completion: Fundamental 24 Sets-GRE填空基础24套 - _3BS00M194E00Y68!

The conclusion of such a vast and complex book should have contained a (i)____________ of the author's ideas to (ii)____________ the general remarks he made in the introduction. A. rebuttal B. complement C. summation D. incense E. retraction F. disprove