【单选题】Barriers that prevent the entry of new firms may arise because:
A.
economies of scale exist over a substantial range of industry demand.
B.
marginal revenue is less than average total cost.
C.
the government protects some firms from competition.
【简答题】Strategic alliance may bring negative effects to firms if not properly managed.
【单选题】A monopolistically competitive market
A.
may have too many or too few firms, and the government can intervene to achieve the optimal number of firms.
B.
may have too many or too few firms, but the government can do little to rectify the situation.
C.
usually has too many firms, reducing the economic profit of each firm to zero.
D.
usually has too few firms, reducing the product variety for consumers.
【单选题】Which of the following is NOT true of small firms?
A.
It may be unnecessary for them to send people to colleges.
B.
They cannot afford to send people to colleges.
C.
Their employees may be promoted more quickly.
D.
They may offer positions which you demand.
【判断题】“回到过去,杀死自己的祖父母”这一时间机器的佯谬的不可接受程度堪比相对论中的“双生子佯谬”。()
【单选题】下面的软件,哪个不属于矢量绘图软件( )。
【单选题】A firms new marketing approach may not work perfectly because of______.
A.
lack of an information system
B.
limited ability to satisfy customers' needs
C.
difficulty in developing tailored products