問題詳情
15.In the long run, a competitive firm has
(A)an economic profit， and so does a monopoly.
(B)an economic profit, but a monopoly does not.
(C)no economic profit., but a monopoly might.
(D)no economic profit’‘ and neither does a monopoly.
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)