新旅行社进入市场所多承担的经营成本以及所承受的不利因素,称为( ) The operating costs of the new travel agencies entering the market and the unfavorable factors they bear are called ( )
A.
交易成本 transaction cost
B.
进入壁垒 the barrier of entry
C.
退出壁垒 the barrier of exit
D.
规模不经济 dis-economies of scale
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参考答案:
举一反三
【单选题】The passage implies that
A.
it is not easy to persuade manufacturers to adopt the new design.
B.
the team of engineers has not found any countermeasures.
C.
children like to ride bicycles at a very low speed.
D.
a lot of children were killed in bicycle accidents in the past 30 years.
【简答题】It is not easy to count them.Nor is it easy to describe a typical homeless person, for the picture has changed over the years and differs from place to place.(翻译)