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【单选题】
发动机冷却液温度低于70°C时,冷却系的循环方式是( )。A.
小循环
B.
大循环
C.
混合循环
D.
不循环
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皮皮学刷刷变学霸
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【单选题】A monopolist faces a constant marginal cost of $1 per unit. If at the price he is charging,the price elasticity of demand for the monopolist's output is -0.5, then:
A.
the price he is charging must be 2.
B.
the price he is charging must exceed 2.
C.
the price he is charging must be less than 2.
D.
the monopolist can not be maximizing profits.
【单选题】monopolist faces a constant marginal cost of $1 per unit. If at the price he is charging,the price elasticity of demand for the monopolist's output is -0.5, then:
A.
the price he is charging must be 2.
B.
the price he is charging must exceed 2.
C.
the price he is charging must be less than 2.
D.
the monopolist can not be maximizing profits.
【判断题】If an upstream monopolist sells to a downstream monopolist, the price to consumers will be higher than the competitive price, but not so high as it would be if the downstream monopolist took control o...
A.
正确
B.
错误
【简答题】综合评价指标体系包括多个层次设立的指标，指标的设立要与目标所处的层次相关。这体现了评价指标的设立应遵循（ ）原则。
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