第5题: [单项选择]Which of the following is seen as the cause of class differences in the past A. Life style and occupation. B. Attitude and income. C. Income and job security. D. Job security and hobbies. 参考答案:C 答案解析:根据题干in the past定位到第二段第一、二句:在过去,工人阶级的收入往往比中产阶级的低;正由于此,再加上工人的工作一般得不到很好的保障,两大阶级在生活方式和态度上出现了明显的不同。简而言之,收