【单选题】有关与上级沟通的方法和艺术,以下说法哪一个是不合适的?()
【单选题】肾炎时,毛细血管壁增厚呈车轨状或分层状见于
【单选题】Under monopolistic competition:
A.
there are significant barriers to entry.
B.
there are few barriers to entry.
C.
firms sell identical products.
D.
firms face perfectly elastic demand curves.
【单选题】In equilibrium under monopolistic competition:
A.
firms always earn profits in the short run.
B.
firms always suffer losses in the short run.
C.
output is at the socially efficient level in the long run.
D.
marginal revenue is less than price.
【单选题】In equilibrium under monopolistic competition:
A.
marginal revenue exceeds average revenue.
B.
marginal revenue exceeds marginal cost.
C.
marginal revenue is equal to marginal cost.
D.
marginal revenue is less than marginal cost.