题目内容

“污染税可以减少企业产生的污染量”这一实证表述,

A. 可能由担任政策顾问的经济学家制定。
B. 需要价值观和数据才能进行评估。
C. 需要数据而不是价值观才能进行评估。
D. 不能由充当科学家的经济学家来评估。

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[单选]An economy’s production possibilities frontier is also its consumption possibilities frontier

A. under all circumstances.
B. under no circumstances.
C. when the economy is self-sufficient.
D. when the rate of tradeoff between the two goods being produced is constant.

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[单选]Regan grows flowers and makes ceramic vases. Jayson also grows flowers and makes ceramic vases, but Regan is better at producing both goods. In this case, trade could

A. benefit both Jayson and Regan.
B. benefit Jayson, but not Regan.
C. benefit Regan, but not Jayson.
D. benefit neither Jayson nor Regan.

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[单选]The following table contains some production possibilities for an economy for a given year.If the production possibilities frontier is a straight line, then “?” must be

A. 340.
B. 330.
C. 320.
D. 310.

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[单选]Assume for the United States that the opportunity cost of each airplane is 100 cars. Then which of these pairs of points could be on the United States' production possibilities frontier?

A. (200 airplanes, 5,000 cars) and (150 airplanes, 4,000 cars)
B. (200 airplanes, 10,000 cars) and (150 airplanes, 20,000 cars)
C. (300 airplanes, 15,000 cars) and (200 airplanes, 25,000 cars)
D. (300 airplanes, 25,000 cars) and (200 airplanes, 40,000 cars)

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“污染税可以减少企业产生的污染量”这一实证表述,

A. 可能由担任政策顾问的经济学家制定。 B. 需要价值观和数据才能进行评估。 C. 需要数据而不是价值观才能进行评估。 D. 不能由充当科学家的经济学家来评估。

[单选]An economy’s production possibilities frontier is also its consumption possibilities frontier

[单选]Regan grows flowers and makes ceramic vases. Jayson also grows flowers and makes ceramic vases, but Regan is better at producing both goods. In this case, trade could

[单选]The following table contains some production possibilities for an economy for a given year.If the production possibilities frontier is a straight line, then “?” must be

[单选]Assume for the United States that the opportunity cost of each airplane is 100 cars. Then which of these pairs of points could be on the United States' production possibilities frontier?

A. 可能由担任政策顾问的经济学家制定。
B. 需要价值观和数据才能进行评估。
C. 需要数据而不是价值观才能进行评估。
D. 不能由充当科学家的经济学家来评估。