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【单选题】
My brother can play _____. And he can play _____ too. [ ]A.
a violin, football
B.
the violin, the football
C.
the violin, football
D.
the violin, a football
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反馈参考答案：
举一反三
【多选题】对于边际效用的理解,正确的是
A.
每增加一个单位商品消费带来的效用增量
B.
消费一定数量的商品,获得的整体满意度
C.
数学表达式为MU=△TU/△Q(TU表示总效用,Q表示物品数量)
D.
边际效用递减说明随着消费某种商品数量的增加,带来的效用增量递减
E.
边际效用递减规律普遍存在
【单选题】_______ energy under the earth must be released in one form or another, for example, an earthquake. [ ]
A.
Accumulated
B.
Gathered
C.
Assembled
D.
Collected
【简答题】________ energy under the earth must be released in one form. or another, for example, an earthquake. A) Accumulated B) Gathered C) Assembled D) Collected
【单选题】Nuclear energy, despite its early promise a source of eleetrical power, is still under dispute____old and safe energy sources.
A.
in compared with
B.
in compared to
C.
compared with
D.
compared to
【单选题】人们常说婚姻有“七年之痒”,从经济学来说,这是因为( )
A.
人的欲望是无穷无尽的
B.
人都有自由选择的权利
C.
婚姻也存在边际效用递减规律
D.
人都希望获得消费者剩余
【简答题】______ represents the energy per unit volume of a material required to produce fracture under static conditions. A) Modulusofelasticity B) Modulusoftoughness C) Modulusofresilience D) Modulusofrigidit...
【简答题】什么是边际效用递减规律?为什么存在边际效用递减规律? 14 怎样理解消费者权益?
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