选择题:A. What kind of job did you do? B: ( ).(本题3.5分) A、 题目分类:东北林业大学外语3(专升本) 题目类型:选择题 查看权限:VIP 题目内容: A. What kind of job did you do? B: ( ).(本题3.5分) A、 worked at a bookstore on campus. B、 Yes. I brewed coffee in the Student Union. C、 But selling books was satisfying. D、 I need to earn the money. 参考答案:
没有外部性时,生产者和消费者付出的私人边际成本之和也就是社会边际成本,生产者和消费者得到的私人边际收 没有外部性时,生产者和消费者付出的私人边际成本之和也就是社会边际成本,生产者和消费者得到的私人边际收益也就是社会边际利益。()A.错误B.正确 分类:东北林业大学外语3(专升本) 题型:选择题 查看答案