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简述国务院的提案职权及其主要内容。
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A patent is an exclusive right given to an inventor for his or her invention. In other words, a patent is a monopoly right given to the inventor for the invention. A patent confers on the inventor the right to price and to sell the invention in any way he or she desires, in the United States, patents are granted by the Patent Office for 17 years. Although economists generally condemn monopoly as a form of market organization since monopoly imposes costs on the economy, patents present a more subtle case for monopoly theory. Specifically, can patent monopolies be justified In general, economists complain about the costs of monopoly because they believe that the same industry could be organized competitively. A patent monopoly grant for 17 years presents a different problem. That is, the purpose of the patent system is to encourage invention. The issue is not monopoly versus competition but, more fundamentally, invention versus no invention. Is the world better off with the invention, even though it is monopolized for 17 years In other words, what are the costs and benefits of a patent Consider the simple case of a new consumer product with a positive demand, such as a camera utilizing a new exposure process. The costs of the patent monopoly are simply the deadweight costs of monopoly measured by the lost consumers’ surplus from the 17-year patent monopoly. This cost must be assessed carefully in the context of an invention, however. What are the benefits of the patent system First, there is the increase in consumer well-being brought about immediately by a desirable invention. In 17 years, the patent monopoly ends, and a second source of benefits arises: The price of cameras will fall to a competitive level, and consumers will reap the benefits of the camera at a lower price. In sum, theory of monopoly helps us to assess the costs and benefits of the patent. One can quibble about patent monopolies, arguing, for example, that they are granted for too long a time. In the end, the patent system creates goods and services and technologies that did not previously exist. In this respect it is a valuable System for the economy. The patent system also underscores the importance of property rights to ideas as a source of economic growth and progress. The second paragraph suggests strongly______.
Questions 11 to 18 are based on the conversation you have just heard.
Immediately after the Civil War, however, the diet began to change. 46) Rail transportation increased the supply and improved the quality of the milk that reached urban centers; cold storage and refrigerator cars made possible the greater consumption of fresh vegetables, fresh fruits, and fresh fish; and commercial canning extended the range of appetizing and healthful foods. Subsequently food statistics indicated an increased consumption of dairy products, fresh fruit, fresh vegetables, sugar and syrups, coffee, tea, cocoa, and spices. Decreased consumption was shown for meats, potatoes, and grain products. 47) By and large, the American diet continued to reflect a considerable reliance upon animal products: rather than on grains. which meant that a relatively large acreage was required to feed the American public. Whereas a grain and fish diet, such as in Japan, requires only a quarter of an acre high yield cropland and no pasture per capita, the American diet requires about two and a half acres of cropland and ten acres of pasture per capita-Also it indicated a shift toward the so-called protective foods, toward those high in vitamins and proteins. 48) This change was greatly furthered by governmental food inspection ( the Pure Food and Drug Act was passed in 1906), by the increasing, use of mechanical refrigerators in the 1920’s and 1910’s and of freezers for frozen food during recent decades.In the years after World War I a food revolution took place that was reminiscent of the one that occurred after the Civil War. The output of the food manufacturing industry quadrupled from 1900 to 1920.49) In that interval, as we have mentioned earlier, home canning gave way to commercial canning and the labor of housekeeping was lightened.Fortunately most of the major dietary changes that have taken place since the middle of the nineteenth century have resulted in better nutrition for the population. In port, these shifts have taken place because of a preference for new foods rather than old, but in part, they have been made because the new foods were advocated by nutritionists. Apparently American dietary customs were not so deeply ingrained as to prevent change in the interests of better health. 50) Possibly one factor that has contributed to the readiness of Americans to accept new foods or food preparations as the general familiarity most have with a variety of regional dishes coming from many different lands. Within a small area in New York City or San Francisco, one can find restaurants specializing in French, Italian, German, Turkish, Arabian, or Chinese cuisine. And at a Chinese restaurant in the United States the chef and waiter are as likely as not to he Oriental. Possibly one factor that has contributed to the readiness of Americans to accept new foods or food preparations as the general familiarity most have with a variety of regional dishes coming from many different lands.
Questions 11 to 18 are based on the conversation you have just heard.
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