The American economic system is organized around a basically private-enterpr

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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 American economic system.
    The important factor in a private-enterprise economy is that individuals 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. [br] It is implied in the first two sentences in the second paragraph that_____.

选项 A、consumers can be satisfied by mechanized production
B、producers are the means through which consumers express their demands
C、the price of products are decided by producers
D、prices are regulated by supply and demand

答案 D

解析 第2段前两句话提到,市场经济的一个重要组成因素就是反映消费者需求并促使生产者对消费者需求做出反应的机制。在美国经济中,这种机制是通过价格体系来实现的。在该价格体系下,价格随消费者的需求以及销售者——生产者的供应情况上下涨跌。结合这两句可知,价格是由供求关系调控的,因此选项D为本题答案。
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