概念题：垄断、寡头、垄断竞争（ monopoly, oligopoly, monopolistic competition）
举一反三
- 概念题：不完全竞争：勾结寡头、垄断竞争、少数寡头（ imperfect competition:collusive oligopoly, monopolistic competition, small-number oligopoly）
- 解释概念：垄断竞争（ monopolistic competition）
- 以下说法对应错误的是(): Mono-poly:一对多|Monopolistic competition:垄断竞争|Oligo-poly:寡头垄断|Perfect competition:不完全竞争
- 概念题：垄断竞争中的无利润均衡（ no-profit equilibrium in monopolistic competition）
- ______ have single firm in the industry. A: Perfect competition B: Monopoly C: Oligopoly D: Monopolistic competition