| There are various in which individual
economic units can interact with one another. Three basic ways may be described
as the market system, the administered system and the traditional
system. In a market system individual economic units are free to interact among each other in the marketplace. It is possible to buy commodities from other economic units or sell commodities to them. In a market, transactions may take place via barter or money exchange. In a barter economy, real goods such as automobiles, shoes and pizzas are traded against each other. Obviously, finding somebody who wants to trade my old car in exchange for a sailboat may not always be an easy task. Hence, the introduction of money as a medium of exchange eases transactions considerably. In the modem market economy, goods and services are bought or sold for money A. To outline contrasting types of economy. B. To explain the science of economics. C. To argue for the superiority of one economics. D. To compare barter and money exchange markets. [填空题]This passage discusses some of the useful ideas of B. Franklin’ s, his role in public service and his contribution to American ideals.
[填空题]The author of this passage first discusses the considerations for choosing the businessman of the century and then comes up with conclusion that Henry is the person that met the criteria.
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