单选题Centuries ago, man discovered that removing moisture from food helps to preserve it, and that the easiest way to do this is to expose the food to sun and wind. In this way the North American Indians produce pemmican (dried meat ground into powder and made into cakes), the Scandinavians make stockfish and the Arabs dried dates and "apricot leather". All foods include water—cabbage and other leaf vegetables contain as much as 93% water, potatoes and other root vegetables 80%, lean meat 75% and fish, anything from 80% to 60%, depending on how fatty it is. If this water is removed, the activity of the bacteria which cause food to go bad is checked. Fruit is sun-dried in Asia Minor, Greece, Spain and other Mediterranean countries, and also in California, South Africa and Australia. The methods used vary, but in general, the fruit is spread out on trays in drying yards in the hot sun. In order to prevent darkening, pears, peaches and apricots are exposed to the fumes of burning sulfur before drying. Plums, for making prunes, and certain varieties of grapes for making raisins and currants, are dipped in an alkaline solution in order to crack the skins of the fruit slightly and remove their wax coating, so as to increase the rate of drying. Nowadays most foods are dried mechanically. The conventional method of such dehydration is to put food in chambers through which hot air is blown at temperatures of about 110℃ at entry to about 43℃ at exit. This is the usual method for drying such things as vegetables, minced meat, and fish. Liquids such as milk, coffee, tea, soups and eggs may be dried by pouring them over a heated steel cylinder by spraying them into a chamber through which a current of hot air passes. In the first case, the dried material is scraped off the roller as a thin film which is then broken up into small, though still relatively coarse flakes. In the second process it falls to the bottom of the chamber as a fine powder. Where recognizable pieces of meat and vegetables are required, as in soup, the ingredients are dried separately and then mixed. Dried foods take up less room and weigh less than the same food packed in cans or frozen, and they do not need to be stored in special conditions. For these reasons they are invaluable to the climbers, explorers and soldiers in battle, who have little storage space. They are also popular with housewives because it takes so little time to cook them. Usually it is just a case of replacing the dried-out moisture with boiling water.

单选题Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.

单选题Jason ______ up a textile mill near the upper reaches.

单选题Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions.

单选题Small farms and the lack of modern technology have ______ agricultural production.A. blunderedB. tangledC. bewilderedD. hampered

单选题 {{I}} Questions 23 and 24 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.{{/I}}

单选题Why is it that the global telegraph network was truly revolutionary?

单选题From the passage, we can deduce that the main purpose of most wrapping is to______

单选题She didn't ring the communication cord immediately because

单选题{{B}}TEXT C{{/B}} For many countries there are two legal means for obtaining technology. to permit multinational companies to conduct business within their borders and the use of licensing agreements. Japan rank high among the nations that have. gone to some lengths to keep foreign -owned companies out of industries connected with national defense, and the case of Japan is commonly cited for the idea that such a policy is feasible. In this case, multinational ownership is not important fox-the efficient transfer of technological information between nations; the use of licensing agreements is just as efficient. For over a hundred years Japan has consistently spent large sums of money and considerable human resources in an effort to obtain technology. Her ability to negotiate has been strengthened by the fact that most of the technology she wanted was not very secret. Japan's position has also been strengthened by the fact that her internal market was large, so that access to this market could be offered to multinational companies as an incentive for them to grant licenses. Besides, Japan's work force was literate and disciplined, so it was capable of applying the information it acquired. Finally, American and European companies might take a large share of the world market if they were not limited by licensing agreements. Conditions of this sort, coming together in one nation, may well be unique, and the case of Japan may therefore not actually demonstrate that licensing is just as efficient as multinational ownership for the transfer of technology. In fact, Japan may be finding this method of operation less effective than in the past, as her needs for outside technology now require information which belongs to only a few companies and is more closely held. Further- more, her need to use the markets of other countries is beginning to weaken its negotiating power she once had because of her control of her access to her internal market.

单选题Which of the following statements does not truly describe A1 Castellano?

单选题The word "catharsis" in paragraph 3 most probably means ______.

单选题The country was on the verge of becoming prosperous and successful. The underlined part means A. on the border of B. close to C. on the margin of D. during the course of

单选题Which of the following statements about the Total Information Awareness project is NOT mentioned in the passage?