- 搜标题
- 搜题干
- 搜选项
单项选择题
Which of the following is a characteristic of oligopoly or monopolistic competition, but not perfect competition? ( )
A．Advertising and sales promotion.
B．Profit maximization according to the MR = MC rule.
C．Firms being price takers rather than price makers.
D．Horizontal demand and marginal revenue curves.
B．Profit maximization according to the MR = MC rule.
C．Firms being price takers rather than price makers.
D．Horizontal demand and marginal revenue curves.
