第27题: [单项选择]One characteristic of the rich classes of a declining society is their tendency to A. take in the recently wealthy. B. retreat within themselves. C. produce publications on manners. D. change the laws of etiquette. 参考答案:B 答案解析:文章的第一段告诉我们,当一个社会处于经济衰退或动荡的时候,统治阶级为了保持他们高高在上的社会地位,会用礼仪作为挡箭牌,割断与中、低层阶级的联系。只有在经济繁荣的时候,才会从暴发户中吸收新鲜血液。这样,