Thomas Edison considered genius to be _____ one per cent inspiration and ninety-nine percent perspiration.
A.posed of
B.constituted in
C.consisted of
D.prised in
网友回答
A解析posed of. [注释]be posed of由......组成。consist of由......组成，是不及物动词，不能用被动语态，故不合题意;而B，D为及物动词不需要用介词。