问题补充:
This history book is that one, but than that one.
A. as difficult as; interesting
B. as more difficult as; more interesting
C. as difficult as; more interesting
D. more difficult as; as interesting
答案:
A. as difficult as; interesting
B. as more difficult as; more interesting
(答案→)C. as difficult as; more interesting
D. more difficult as; as interesting
解析:
试题分析: 句意:这本历史书和那本书一样难,但比那本书更有趣。as...as和……一样,形容词用原级;than比,形容词用比较级,故选C.