A class is said rather vaguely to ______ a group of persons sharing similar occupations and incomes, and as a consequence similar lifestyles and beliefs.
A、consist of
B、contrast with
C、contribute in
D、composed of
【正确答案】：A
【题目解析】：consist of由...组成；contrast with与...相比；contribute in贡献；be composed of由...组成句意：人们模糊地说，一个阶级是由一群有着相似职业和收入的人组成的，其结果是相似的生活方式和信仰。
