第11题: [单项选择]How does the woman feel about Singapore A. That he likes Mr. Black. B. That the woman shouldn’t worry. C. That he is worried. D. That Mr. Smith is very kind. 参考答案:B 答案解析:[听力原文] W: Mr. Black just said that if I’m late again he will fire me. M: Don’t let it get you
第16题: [单项选择]一个垄断厂商面临着一条需求曲线,平均收益曲线与边际收益曲线的关系是( )。 A. 前者的斜率是后者的两倍 B. 后者的斜率是前者的两倍 C. 两者的斜率是相同的 D. 两者的斜率不存在内在的联系 参考答案:B 答案解析:[分析] 如图12-2所示,垄断厂商的边际收益MR曲线的斜率是平均收益AR曲线斜率的两倍,因此,本题的正确选项为B。 [*]