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【简答题】
hula 豆的国内供给和需求曲线如下:供给: P=50+Q ;需求: P=200-2Q ,式中, P 是以美元 / 磅计的价格; Q 是以百万磅计的数量。在世界 hula 豆市场上,美国只是一个小国,无力影响市场价格。已知时价为 0.6 美元 / 磅,国会正考虑征收 0.4 美元 / 磅的关税,试找出征税后 hula 豆的国内价格,同时计算关税给国内消费者、国内生产者和政府带来的受益或损失。
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举一反三
【单选题】According to the author, where does the happiness of scientists lie?
A.
It lies in a sense of fulfillment.
B.
It lies in their rich imagination.
C.
It lies in the increase of their knowledge.
D.
It lies in the opportunity to continue the search.
【单选题】Happiness is contrasted with eye color because happiness __________.
A.
does not have a color
B.
is not physical
C.
cannot be seen
D.
may not last
【单选题】According to the author, where does the happiness of scientists lie?
A.
It lies in a sense of fulfillment.
B.
It lies in their rich imagination.
C.
it lies in the increase of their knowledge.
D.
It lies in the opportunity to continue the search.
【单选题】In the world of the comics, happiness depended on______.
A.
a crazy sense of humor
B.
a love of life
C.
a little faith and luck
D.
cunning and courage
【单选题】The Greek philosopher Aristotle said that a persons highest happiness comes from the use of his or her intelligence. Religious books such as the Koran and Bible discuss faith as a form. of happiness. ...
A.
the importance of happiness
B.
the cause of happiness
C.
the meaning of happiness
D.
people who are happy
【单选题】I want to ________ the secrets of nature and apply them for the happiness of man.
A.
bring in
B.
bring out
C.
bring up
D.
bring about
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