单选题A(Always) since the creation of celluloid, B(plastics) have been found C(to have) D(a multitude) of industrial and commercial uses.

单选题I feel very sad that the young man's energetic initiative ______ with nothing in the experiment, for he met a lot of interference from the powerful authority.

单选题Mercury is the nearest planet to the sun and its period of ______ is 88 days. A. movement B. evolution C. return D. revolution

单选题At this school we aim to______the minds of all the students by reading.

单选题It could not be Uruled out/U that, sooner or later, the country would break out of the treaty.

单选题It can be inferred that Richard II's reign was ______.

单选题If a product looks different or tastes different from normal, the patient should first contact the pharmacist, who has a professional duty to ______ only licensed medicines.

单选题Which of the following statements is true of Lake Elsinore?

单选题[此试题无题干]

单选题According to the passage altogether how much money is wasted every year on gift-giving?

单选题When Blanchard was, making Cornish game hen for dinner, Bongo Marie acted as if paco was ______.

单选题Visanto Melina, R.D., got the surprise of her career last year, when Seattle-based vegetarian nutritionist was asked to give a seminar on vegetarianism at a senior citizen center. "I thought there"d be four or five people." she says. Instead, the room was packed with seniors who had paid a $5 fee to hear her advice. And their interest in better health wasn"t only keen; it was informed. "They"ve obviously been paying attention to new research," she says. If Melina studied demographic trends for a living, she probably wouldn"t have been so surprised. Trend watchers have verified an intriguing new phenomenon. Older people are turning to a vegetarian diet in ever-increasing numbers. Not surprisingly, demographics are driving the drift. By the year 2005, people born between 1949 and 1963 the Baby Boom Generation, will make up 38 percent of the American population. Furthermore, statistics suggest this educated, health-conscious, rebellious and relatively affluent contingent fits the traditional vegetarian profile. Add to the fact that older people seek natural, pleasant ways to combat problems associated with aging—weight gain, higher cholesterol and blood pressure, increased cancer risk and impaired digestion—and you have real motivation to go meatless, says Suzanne Havala, R. D., author of the American Dietetic Association"s position paper on vegetarianism. Quantifying this new trend isn"t easy, but a 1994 study by Health Focus Inc., an independent research organization based in Des Moines, Iowa, found that shoppers over age 50 are cutting down on their consumption of red meat or eliminating it from their diets entirely. More compelling evidence for the senior surge toward vegetarianism comes from vegetarian groups nationwide, which report a swell in the ranks of older vegetarians. For example, one out of five members of the new Syracuse (N.Y.) Area Vegetarian Education Society is over 50; unusually high for a fledgling organization. And two-thirds of the 850-member Vegetarian Society of Honolulu are also members of the American Association of Retired Persons, society executives say. An informal poll of older people suggests better health is often the main incentive and objective for turning veg. Three years ago Nancy Roberts, a 53-year-old Magazine editor, found herself doing what many people do over the holidays: overindulging in rich treats. However, this time it made her in. "The crash felt like the flu," she says. By chance, Roberts was asked to edit some vegetarian recipes during that same period. She made a few at home, and her "flu" disappeared. More dramatically, Ruth Heidrich believes vegetarianism saved her life. The 61-year-old marathoner and triathlete was diagnosed with breast cancer 14 years ago, at age 47. When an initial biopsy indicated far more cancer than her doctors had thought, she was ready to take desperate measures. On the day of the diagnosis, she spotted a newspaper ad looking for volunteers to enroll in a study of breast cancer and diet, conducted by John McDougall, M. D., a leading advocate of the use of diet to fight disease. After meeting McDougall and reviewing what she says was an eight-inch thick file of statistics linking a high-fat diet with breast cancer, Heidrich converted from a traditional American diet to an extremely low-fat regimen with no animal products. "I didn"t even have skim milk on my cereal," she says. After a mastectomy and reconstructive surgery, she is cancer-free. She never had to undergo radiation treatment or chemotherapy and believes her strict vegetarian diet helped speed her recovery from surgery.

单选题In the passage, which of the following is NOT included in the advantage of a survey of public opinions?

单选题The newly developed science of artificial intelligence aims at programming the computer to think, reason and react______people do.

单选题 {{B}}Questions 6-10 are based on the following passage.{{/B}} To understand the failings of existing farm programs, it's important to understand the roots of the current farm crisis. At the heart of the problem is money—how much there is and how much it costs to borrow. A farmer is a debtor almost by definition. In my own state, it's not unusual for a wheat farmer with 1,000 acres to owe several hundred thousand dollars for land and machinery. In addition to making payments on these loans, it's common for such a farmer to borrow about $40,000 each spring to cover fertilizer, diesel fuel, seed, and other operating expenses. The months before the harvest will be anxious ones as the farmer contemplates all the things that could bring: financial hardship, bad weather, crop disease, insects, falling commodity prices. If he has a good year, the farmer can repay his loans and retain some profit; in a bad one, he can lose his whole farm. Money thus becomes one of the farmer's biggest expenses. Most consumers can find some refuge from high interest rates by postponing large purchases like houses or cars. Farmers have no choice. In 1989, for example, farmers paid $12 billion in interest costs while earning $32 billion; last year they paid $22 billion in interest costs, while earning only $20 billion. In a business in which profit margins are small, $4,000 more in interest can mean the difference between profit and loss. Since 1985, 100,000 family farms have disappeared, and while interest rates have fallen recently, they still imperil the nation's farmers. This is why the most basic part of our nation's farm policy is its money and credit policy—which is set by Paul Voicker and the Federal Reserve Board. The Federal Reserve Board's responsibility for nearly ruining our economy is well-known. What's often overlooked is how the board's policies have taken an especially devastating toil on farmers. While high interest rates have increased farm expenses, they've also undermined the export market farmers have traditionally relied on. High interest rates, by stalling our economic engines, have been a drag on the entire world's economy. Developing and third world nations have been particularly hard hit. Struggling just to meet interest payments on their loans from multinational banks, they have had little cash left over to buy our farm products. Even those countries that could still afford our farm products abandoned us for other producers. Our interest rates were so high that they attracted multinational bankers, corporations, and others who speculate on currencies of different countries. These speculators were willing to pay more for dollars in terms of pesos, yen, or marks because those rates guaranteed them such a substantial return.

单选题Which of the following contributes to the low-cost of using rainwater?

单选题Internet is a vast network of computers that connects many of the world"s businesses, institutions, and individuals. The internet, which means interconnected network of networks, links tens of thousands of smaller computer networks. These networks transmit huge amounts of information in the form of words, images, and sounds. The Internet was information on virtually every topic. Network users can search through sources ranging from vast databases to small electronic "bulletin boards", where users form discussion groups around common interests. Much of the Internet"s traffic consists of messages sent from one computer user to another. These messages are called electronic mail or e-mail. Internet users have electronic addresses that allow them to send and receive e-mail. Other uses of the network include obtaining news, joining electronic debates, and playing electronic games. One feature of the Internet, known as the World Wide Web, provides graphics, audio, and video to enhance the information in its documents. These documents cover a vast number of topics. People usually access the Internet with a device called a modem. Modems connect computers to the network through telephone lines. Much of the Internet operates through worldwide telephone networks of fiber optic cables. These cables contain hair thin strands of glass that carry data as pulses of light. They can transmit thousands of times more data than local phone lines, most of which consist of copper wires. The history of the Internet began in the 1960s. At that time, the Advanced Research Projects Agency (ARPA) of the United States Department of Defense developed a network of computers called ARPAnet. Originally, ARPAnet connected only military and government computer systems. Its purpose was to make these systems secure in the event of a disaster or war. Soon after the creation of ARPAnet, universities and other institutions developed their own computer networks. These networks eventually were merged with ARPAnet to form the Internet. By the 1990s, anyone with a computer, modem, and Internet software could link up to the Internet. In the future, the Internet will probably grow more sophisticated as computer technology becomes more powerful. Many experts believe the Internet may become part of a larger network called the information superhighway. This network, still under development, would link computers with telephone companies, cable television stations, and other communication systems. People could bank, shop, watch TV, and perform many other activities through the network.

单选题The word "obscurity" in paragraph 2 could best be replaced by ______ .