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【单选题】
下述说法中,哪一种正确A.
热容 C 不是状态函数
B.
热容 C 与途径无关
C.
恒压热容 C p 不是状态函数
D.
恒容热容 C V 不是状态函数
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反馈参考答案：
举一反三
【判断题】An industry is a natural monopoly when a single firm can supply a good or service to an entire market at a smaller cost than could two or more firms.
A.
正确
B.
错误
【单选题】( ) is a market structure in which firms have market power (the ability to raise price profit- ably above marginal cost) but no additional firm can enter and earn positive profits.
A.
Monopoly
B.
Cartel
C.
Monopolistic competition
D.
Oligopoly
【单选题】When a single firm can produce output over the relevant range of demand more efficiently than two or more firms can, because of the existence of economies of scale, we have:
A.
perfect competition.
B.
monopolistic competition.
C.
diseconomies of scale.
D.
a natural monopoly.
【单选题】For a monopoly, marginal revenue is less than price because
A.
the demand for the firm's output is perfectly elastic
B.
the firm has no supply curve.
C.
the demand for the firm's output is downward sloping.
D.
the firm can sell all of its output at any price.
【单选题】A computer software firm has developed a new and better spreadsheet program. The program is protected by copyrights, so the firm can act as a monopolist for this product. The demand function for the s...
A.
50000
B.
12000
C.
14000
D.
25000
【单选题】A computer software firm has developed a new and better spreadsheet program. The program is protected by copyrights, so the firm can act as a monopolist for this product. The demand function for the s...
A.
50000
B.
12000
C.
14000
D.
25000
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