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【单选题】
If there are large disparities in wage levels between countries, then
A.
trade is likely to be harmful to both countries.
B.
trade is likely to be harmful to the country with the high wages.
C.
trade is likely to be harmful to the country with the low wages.
D.
trade is likely to be harmful to neither country.
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参考解析：
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【单选题】6) If there are large disparities in wage levels between countries, then
A.
trade is likely to be harmful to both countries.
B.
trade is likely to be harmful to the country with the high wages.
C.
trade is likely to be harmful to the country with the low wages.
D.
trade is likely to be harmful to neither country.
E.
trade is likely to have no effect on either country.
【单选题】If there are a large number of firms in a monopolistically competitive industry,
A.
long-run profit will be equal to zero.
B.
the country in which the firms are located can be expected to export the goods they produce.
C.
there will be barriers to entry that prevent addition firms from entering the industry.
D.
the firms will converge production on a standardized product.
E.
there will be a small number of firms that are very large and the rest will be very small.
【单选题】There are a large number of steganographic(2)that most of us are familiar with(especially if you watch a lot of spy movies),ranging from invisible ink and microdots to secreting a hidden message in th...
A.
methods
B.
software
C.
tools
D.
services
【单选题】If there are economies of scale throughout the relevant output range of production, which is false?
A.
It is a natural monopoly.
B.
It is more efficient to have a single firm produce the good.
C.
It would typically result from a firm's possession of an exclusive patent.
D.
One large firm can produce at lower cost than two or more smaller firms.
【多选题】If there happens a large passenger flow, what may station officers broadcast in the station?
A.
Dear passengers, crowded management plants are now in operation. Please follow the directions to exit the station.
B.
Some entry gates are temporarily shut down. We apologize for any inconvenience this might cause.
C.
The station exit service will be suspended because of the big jam. We apologize for any inconvenience this might cause.
D.
We have informed the fender bus system. Passengers go to the assigned bus waiting place at Exit B, and free buses will be available.