Crystallee2020-03-20 14:46:06

老师好～原版书112页第18题 In a industry comprised of three companies, which are small-scale manufactures of an easily replicable product unprotected by brand recognition or patents, the most representative model of company behaviour is: A. oligopoly B. perfect competition C. monopolistic competition 在完全竞争下，公司第数量不是应该最多吗？本道题干显示行业只有3个公司。但是后面第描述又比较符合完全竞争市场。