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【简答题】
按谓词变元的不同，关系演算可分为关系演算和______。
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反馈参考答案：
举一反三
【简答题】A．physical B．biological C．mental D．portable
【简答题】《比较教育评论》(Comparative Education Review)
【单选题】Comparative advantage implies that a country will
A.
import those goods in which the country has a comparative advantage.
B.
export those goods in which the country has a comparative advantage.
C.
find it difficult to conclude free trade agreements with other nations.
D.
export goods produced by domestic industries with low wages relative to its trading partners.
【单选题】Which of the following statements about comparative advantage is NOT true?
A.
Comparative advantage is determined by which person or group of persons can produce a given quantity of a good using the fewest resources.
B.
The principle of comparative advantage applies to countries as well as to individuals.
C.
Economists use the principle of comparative advantage to emphasize the potential benefits of free trade.
D.
A country may have a comparative advantage in producing a good, even though it lacks an absolute advantage in producing that good.
【简答题】比较静态均衡(comparative static equilibfium)
【单选题】Which of the following statements about comparative advantage is not true?
A.
Comparative advantage is determined by which person or group of persons can produce a given quantity of a good using the fewest resources.
B.
The principle of comparative advantage applies to countries as well as to individuals.
C.
Economists use the principle of comparative advantage to emphasize the potential benefits of free trade.
D.
A country may have a comparative advantage in producing a good, even though it lacks an absolute advantage in producing that good.
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