Traditionally economics was dubbed the "dismal science" in response t

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问题          Traditionally economics was dubbed the "dismal science" in response to the
   notion that scarcity is its foundation, and it constantly unsettles people with its
   emphasis on the role that self-interest plays. It is difficult to raise a crop of
Line idealism from fields of self-interest, and to some, this is a dismal outcome.
(5)    However, there is an optimistic side to economics: economists focus on market
   exchange, where both buyer and seller emerge with greater wealth than they
   were before, a positive-sum outcome.  In contrast, many social scientists
   outside of economics make heavy use of power models to interpret the world,
   arguably a far more pessimistic way to view reality and power models tend to
(10) see interactions as zero-sum, meaning that any winning is balanced by a loss:
   where one person improves his situation, it must come at the expense of
   another whose situation has become worse. But one reason those who use power
   models are not dubbed "dismal scientists" is that they are often utopian,
   spuriously claiming that at some distant moment, all may win. [br] The author uses which of the following in presenting his argument?

选项 A、animadversion
B、metaphor
C、irony
D、digression
E、experimental evidence

答案 B

解析

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