【题目】Only five years after Steve Jobs’ death ,smart-phones defeated _________PCs in sales.
A.controversial B.contradictory
C.confidential D.conventional
在线课程【答案】D
【解析】考查副词辨析。A. controversial 有争议的；B. contradictory对立的，相互矛盾的；C. confidential机密的，秘密的；D. conventional传统的，智能手机在销量上打败了传统的个人电脑，故选D。