第15题: [单项选择]菜单成本被用来说明()。 A. 工资粘性 B. 工资刚性 C. 价格刚性 D. 价格粘性 参考答案:D
第16题: [单项选择]Where does the conversation take place A. She was not hungry. B. She didn’t like the food. C. She was in too much pain. D. She was on a diet. 参考答案:C 答案解析:[听力原文] M: Mary, you didn’t have your supper tonight. W: I went to the dentist this afternoon a