2014
高考英语阅读理解巩固练习（7）及答案 c7 [2013•陕西卷] c according to sociologists(社会学家), every modern industrial society has some form of social stratification(阶层)．class, power and status are important in deciding people's rank in society. class means a person's economic position in society.a commonly used classification is lower class, middle class and upper class.while sociologists disagree on how these terms should be exactly defined, they do describe societies like the unite
