题目

To our great surprise, young as he is, he ________ his business by opening two more stores last year. A． carried B． expanded C． applied D． created 答案：B【解析】 【详解】 考查动词词义辨析。句意：令我们惊讶的是，尽管他很年轻，去年他开了两家商店扩大了生意。 A. carried携带； B. expanded 扩大； C. applied 申请； D. created 创造。根据 “by opening two stores” 可知，此处表示扩大生意。故选 B 。已知等比数列{an}中，a6-2a3=2，a5-2a2=1，则等比数列{an}的公比是 ．