Liu Xiang is Yao Ming.
A. as a famous athlete as
B. as famous an athlete as
C. so a famous athlete as
D. as famous an athlete so
网友回答
A. as a famous athlete as
(答案→)B. as famous an athlete as
C. so a famous athlete as
D. as famous an athlete so
解析：本题的含义是刘翔和姚明是一样出名的运动员，as……as表示……和……一样的意思，中间加形容词原级，冠词和名词通常位于形容词之后，故本题选B。