语法与词汇

Only five years after Steve Jobs’ death ,smart –phones defeated _________PCs in sales.

【正确答案】 D
【答案解析】

考察形容词词义辨析。A.controversial 有争议的;B.contractory矛盾的,相反的;C.confidential 机密的,表示信任的; D.conventional 传统的,惯例的。句意为:在乔布斯死后短短五年,智能手机在销售额上就超过了传统的个人电脑