单选题 29. A class is said rather vaguely to ______ a group of persons sharing similar occupations and incomes, and as a consequence similar life-styles and beliefs.

A、 consist of
B、 contrast with
C、 contribute in
D、 composed of

【正确答案】 A

【答案解析】 A．consist of由…组成；B．contrast with与…相对比；C．contribute in捐献，贡献；D．be composed of由……组成；该题意思是据说一个阶级含糊的定义为由一群有相似的职业和收入，以及结果产生相似的生活风格和信仰。