The American economic system is organized around a basically private-enterprise, market-oriented economy in which consumers larg

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问题     The American economic system is organized around a basically private-enterprise, market-oriented economy in which consumers largely determine what shall be produced by spending their money in the marketplace for those goods and services that they want most. Private businessmen, striving to make profits, produce these goods and services in competition with other businessmen; and the profit motive, operating under competitive pressures, largely determines how these goods and services are produced. Thus, in the American economic system it is the demand of individual consumers, coupled with the desire of businessmen to maximize profits and the desire of individuals to maximize their incomes that together determine what shall be produced and how resources are used to produce it.
    An important factor in a market-oriented economy is the mechanism by which consumer demands can be expressed and responded to by producers. In the American economy, this mechanism is provided by a price system, a process in which prices rise and fall in response to relative demands of consumers and supplies offered by seller-producers.
    If the product is in short supply relative to the demand, the price will be bid up and some consumers will be eliminated from the market. If, on the other hand, producing more of a commodity results in reducing its cost, this will tend to increase the supply offered by seller-producers, which in turn will lower the price and permit more consumers to buy the product. Thus, price is the regulating mechanism in the America economic system.
    The important factor in a private-enterprise economy is that individual are allowed to own productive resources (private property), and they are permitted to hire labor, gain control over natural resources, and produce goods and services for sale at a profit. In the American economy, the concept of private property embraces not only the ownership of productive resources but also certain rights, including the right to determine the price of a product or to make a free contract with another private individual.
Which of the following is true about the mechanism in a market-oriented economy?

选项 A、By the mechanism the consumer demands can be met.
B、It can express the consumer demands.
C、It determines the price.
D、It is a response to the demands and supplies.

答案B

解析 根据第二段第一句,通过这个机制(mechanism),消费者的需求可以被表达,并且通过生产商,消费者的需求可以被反映。因此选项B正确,而选项A错误。第二段第二句告诉我们,价格的上下浮动是供求关系变化的反映。因此并不是这个机制来决定的,因此选项C错误,同时也就解释了选项D不对的原因。
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