例句與造句

1. All this may seem as abstract and impractical as the theory of perfect competition-- and for many years it was dismissed as just that.
2. Andreu Mas-Colell on theory of perfect competition; Menahem Yaari on the role of " Dutch books " in choice under risk; Robert Aumann on the formal possibilities flowing out of the psychological assumptions known as " bounded rationality;"
3. It's difficult to find theory of perfect competition in a sentence. 用theory of perfect competition造句挺難的