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【单选题】
政府提供公共物品面临的最大困难是 _______ 。A.
如何衡量公共物品的成本和收益
B.
公共物品的生产技术不能满足消费者的需要
C.
公共物品会被过度使用
D.
以上都是
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【简答题】sdgsdf
【单选题】sdfgsdflfg;sdfg;sdlgjweloisd;slglsdfgslertpdfgsdfg;sdfgsd;flgkdflgdflgkd;lfkgdfg;'d
A.
dfgsdfg
B.
sdgsdf
C.
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D.
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【单选题】On the basis of their models, scientists are of the opinion that______.
A.
the climate of the world should be becoming cooler
B.
it will take thousands of years for the inertia of the earth's climate to take effect
C.
the man-made warming effect helps to increase the solar effect
D.
the new Ice Age will be delayed by the greenhouse effect
【简答题】It can be inferred from the passage that scientists of the 18th century ____ A) thought that they knew a great deal and could solve most problems of science B) were afraid of facing up to the realitie...
【简答题】目标管理及其优缺点是什么?
【单选题】On the basis of their models, scientists are of the opinion that______.
A.
the climate of the world should be becoming Cooler
B.
the new Ice Age will be postponed by the greenhouse effect
C.
the warming effect helps to increase the solar effects
D.
inertia of the earth's climate to take effect in thousands of years
【单选题】With the population explosion, scientists will have to ______ new methods of increasing the world's food supply.
A.
come up with
B.
carry out
C.
lead to
D.
stick to
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