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【单选题】
下列说法中正确的是
A.
金属氧化物一定是碱性氧化物，非金属氧化物一定是酸性氧化物
B.
难溶于水的电解质不一定是弱电解质
C.
氨气的水溶液可以导电，说明氨气是电解质
D.
漂白粉和明矾都常用于自来水的处理，二者的作用原理是相同的
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【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
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【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
查看完整题目与答案
【多选题】与固溶体相比，金属化合物的性能特点是 。
A.
硬度高，塑性好
B.
熔点高、塑性低
C.
熔点高、硬度低
D.
熔点高、硬度高
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【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.
查看完整题目与答案
【单选题】当前细胞生物学研究的热门领域是
A.
细胞信号转导
B.
细胞增殖
C.
细胞起源
D.
细胞核的结构
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【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.
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【多选题】与固溶体相比,金属化合物的性能特点是（）
A.
熔点高、硬度低
B.
硬度高、塑性高
C.
熔点高、硬度高
D.
熔点高、塑性低
E.
硬度低、塑性高
查看完整题目与答案
【单选题】A monopoly firm can sell 150 units of output for $10 per unit. Alternatively, it can sell 151 units of output for $9.95 per unit. The marginal revenue of the 151st unit of output is
A.
$2.45.
B.
$-2.45.
C.
$-0.05.
D.
$9.95.
查看完整题目与答案
相关题目：
【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
查看完整题目与答案
【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
查看完整题目与答案
【多选题】与固溶体相比，金属化合物的性能特点是 。
A.
硬度高，塑性好
B.
熔点高、塑性低
C.
熔点高、硬度低
D.
熔点高、硬度高
查看完整题目与答案
【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.
查看完整题目与答案
【单选题】当前细胞生物学研究的热门领域是
A.
细胞信号转导
B.
细胞增殖
C.
细胞起源
D.
细胞核的结构
查看完整题目与答案
【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.
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【多选题】与固溶体相比,金属化合物的性能特点是（）
A.
熔点高、硬度低
B.
硬度高、塑性高
C.
熔点高、硬度高
D.
熔点高、塑性低
E.
硬度低、塑性高
查看完整题目与答案
【单选题】A monopoly firm can sell 150 units of output for $10 per unit. Alternatively, it can sell 151 units of output for $9.95 per unit. The marginal revenue of the 151st unit of output is
A.
$2.45.
B.
$-2.45.
C.
$-0.05.
D.
$9.95.
查看完整题目与答案