单选题There are a lot of ways to measure the effects of America's after - the - fact health - care philosophy, but the most telling might be what epidemiologists call preventable deaths. Certainly, plenty of deaths due to illness are not preventable, but there are many other conditions that a decent health - care system should be able to detect and fix well before they become life - threatening. Most of the leading killers in the U. S. - including pneumonia, diabetes and stroke - fall into this category. According to a Common wealth Fund report issued this year, 101,000 deaths from 2002 to 2003 could have been avoided with access to timely and effective health care. This rate places the U. S. 19th -last -among industrialized nations. What is the best way to assess the effect of America's after - the - fact health - care philosophy?A. Access to timely and effective health care.B. Happening of fatal cases.C. Preventable deaths.D. The fund it receives.

单选题It is very difficult for a child to Uadhere/U to rules.

单选题The library already subscribes to at least one of the materials related {{U}}periodicals{{/U}} published by them.

单选题The thief was finally {{U}}captured{{/U}} two miles away from the village.

单选题Some insects rely on the tiny hairs scattered over their bodies to sense sound waves.A. detectB. amplifyC. sendD. disguise

单选题Supermarket Most supermarkets need a very large floor area, sometimes at least ten times as big as that of an ordinary shop. There are usually two doors, one as an entrance and the other as an exit. The rest of the side facing the street is largely of plate glass, with goods or advertising material displayed. The other three wails are normally decorated in light colours, giving an impression of cleanliness (清洁)and brightness. Most supermarkets are on one floor only. Goods being stored in rooms at the back or upstairs. At right-angles to the window stretch long structures about six feet high with a number of shelves on each side. Similar shelf units or frozen food containers extend round the walls. Broad aisles(通道)between the shelf units and ample(足够的)space between them and the window and also the far wall allow room for the circulation of many people. Individual commodities(商品), in tins, bags, boxes or other containers, are stacked (堆放) in groups on the shelves, and each group is labelled with a price ticket. Metal baskets near the entrance are taken by the shoppers who collect in them the goods they select from the shelves. Between the shelf units and the window in one half of the shops are a number of small counters about three feet high. Beside each sits a cashier (现金出纳员), who operates a machine for reckoning, detailing the cost of each customer's purchases. The customer places the basket at one end of the counter so that it can be emptied by the cashier who records the price of the commodities one by one, before putting each on a moving section of the counter top. The goods are collected and packed into the customer's bag by another assistant at the end of the counter. The cashier finally hands a printed slip recording all prices to the customer, who pays the total, collects the bag and leaves.

单选题World Crude Oil Production May Peak a Decade Earlier Than Some Predict In a finding that may speed efforts to conserve oil, scientists in Kuwait predict that world conventional crude oil production will peak in 2014. This prediction is almost a decade earlier than some other predictions. Their study is in ACS" Energy a related concept is that of Peak Oil. The term "Peak Oil" indicates the moment in which worldwide production will peak, afterwards to start on irreversible decline. The Hubbert model accurately predicted that oil production would peak in the United States in 1970. The model has since gained in popularity and has been used to forecast oil production worldwide. However, recent studies show that the model is insufficient to account for more complex oil production cycles of some countries. Those cycles can be heavily influenced by technology changes, politics, and other factors, the scientists say. The new study describes development of a new version of the Hubbert model that provides a more realistic and accurate oil production forecast. Using the new model, the scientists evaluated the oil production trends of 47 major oil-producing countries, which supply most of the world"s conventional crude oil. They estimated that worldwide conventional crude oil production will peak in 2014, years earlier than anticipated. The scientists also showed that the world"s oil reserves are being reduced at a rate of 2.1 percent a year. The new model could help inform energy-related decisions and public policy debate, they suggest.

单选题{{B}}第三篇{{/B}} {{B}} International Sports{{/B}} Some people believe that international sport creates goodwill between the nations and that if countries play games together they will learn to live together. Others say that the opposite is true: that international contests encourage false national pride and lead to misunderstanding and hatred. There is probably some truth in both arguments, but in recent years the Olympic Games have done little to support the view that sports encourages international brotherhood. Not only was there the tragic incident involving the murder of athletes, but the Games were also ruined by lesser incidents caused principally by minor national contests. One country received its second-place medals with visible indignation after the hockey (曲棍球) final. There had been noisy scenes at the end of the hockey match, the loser's objection to the final decisions. They were convinced that one of their goals should not have been disallowed and that their opponents' victory was unfair. Their manager was in a rage when he said: "This wasn't hockey. Hockey and the International Hockey Federation are finished." The president of the Federation said later that such behavior could result in the suspension of the team for at least three years. The American basketball team announced that they would not yield first place to Russia, after a disputable end to their contest. The game had ended in disturbance. It was thought at first that the United States had won, by a single point, but it was announced that there were three seconds still to play. A Russian player popped it into the basket. It was the first time the USA had ever lost an Olympic basketball match. An appeal jury debated the matter for four and a half hours before announcing that the result would stand. The American players then voted not to receive the silver medals. Incidents of this kind will continue as long as sport is played competitively rather than for the love of the game. The suggestion that athletes should compete as individuals, or in nonnational teams, might be too much to hope for. But in the present organization of the Olympics there is far too much that encourages aggressive patriotism.

单选题In statistics the most frequently used computations are the mean, the median, and the mode because all are indicators of central tendency.A. graphsB. variablesC. calculationsD. words

单选题Smoking Can Increase Depressive Symptoms in Teens While some teenagers may puff on cigarettes to "self-medicate" (自我治疗) against the blues (忧郁), scientists at the University of Toronto and the University of Montreal have found that smoking may actually 1 depressive symptoms in some teens. "This observational study is one of the few to examine the perceived 2 benefits of smoking among teens," says lead researcher Michael Chariton, a research associate at the Ontario Tobacco Research Unit of the University of Toronto. " 3 cigarettes may appear to have self-medicating effects or to improve mood, in the long 4 we found that teens who started to smoke reported higher depressive symptoms. " As part of the study, some 662 high school teenagers completed up to 20 questionnaires about their use of cigarettes to 5 mood. Secondary schools were selected to provide a mix of French and English participants, urban and rural schools, and schools 6 in high, moderate and low socioeconomic neighborhoods. Participants were divided into three 7 : never smokers; smokers who did not use cigarettes to self-medicate improve mood or physical 8 ; smokers who used cigarettes to self-medicate. Depressive symptoms were measured using a scale that asked how often participants felt too tired to do things; had 9 going to sleep or staying asleep; felt unhappy, sad, or depressed; felt hopeless about the future; felt anxious or tense; and worried too much about things. "Smokers who used cigarettes as mood 10 had higher risks of elevated (提升) depressive symptoms 11 teens who had never smoked," says co-researcher Jennifer O"Loughlin, a professor at the University of Montreal Department of Social and Preventive Medicine. "Our study found that teen smokers who reported emotional benefits from smoking are 12 higher risk of depressive symptoms." The 13 between depression and smoking exits 14 among that use cigarettes to feel better. " It"s 15 to emphasize that depressive symptom scores were higher among teenagers who reported emotional benefits from smoking after they began to smoke," says Dr. Chariton.

单选题I catch cold {{U}}now and then{{/U}}.

单选题It is believed by scientists that traditional medicines

单选题My uncle volunteers his services to worthy causes.A. assertsB. offersC. blastsD. impeaches

单选题E-commerce The term e-commerce refers to all commercial transactions conducted over the Internet, including transactions by consumers and business-to-business transactions. Conceptually, e-commerce does not (51) from well-known commercial offerings such as banking by phone, "mail order" catalogs, or sending a purchase order to supplier (52) fax. E-commerce follows the same model (53) in other business transactions; the difference (54) in the details. To a consumer, the most visible form of e-commerce consists (55) online ordering. A customer begins with a catalog of possible items, (56) an item, arranges a form of payment, and (57) an order. Instead of a physical catalog, e-commerce arranges for catalogs to be (58) on the Internet. Instead of sending an order on paper or by telephone, e-commerce arranges for orders to be sent (59) a computer network. Finally, instead of sending a paper representation of payment such as a check, e-commerce (60) one to send payment information electronically. In the decade (61) 1993, e-commerce grew from an (62) novelty (新奇事物) to a mainstream business influence. In 1993, few (63) had a web page, and (64) a handful allowed one to order products or services online. Ten years (65) , both large and small businesses had web pages, and most provided users with the opportunity to place an order. Besides, many banks added online access, and online banking and bill paying became widespread. More importantly, the value of goods and services acquired over the Internet grew dramatically after 1997.

单选题It not given a voice in managenal decision making workers_____.

单选题Shared Holiday Spending a holiday with another family sounds like a good idea. It enables your kids to play with other kids, enables you to communicate with other parents, and enables your family to rent a bigger and nicer house. It might be too expensive fur your family to rent such a house on your own. However, not all sharing holidays are pleasant for everyone. Clare is a mother of four. She used to spend holidays with her friends. However, she found that the experience was painful although her friends are nice people. Her friends rented a nice house and invited her family to join them. The house was much more expensive than Clare was able to pay for. In addition, her children were too yuung to enjoy the holiday. The big problem was that Clare had to share the cooking during the holiday. Her friends left their children with their nanny (保姆)when they were cooking. Keeping up with children was tiring for Clare, because she didn't have a nanny. What's more, her children didn't want to be looked after by her friends. As a result, Clare had to look after her children whenever she had to prepare the dinner. What's worse, Clare's friends paid too much attention to how many ice creams their children had. They even didn't care about Clare's kids at all. John is a lawyer and father of tour children. He once spent a holiday with one of his best friends. During the holiday, the relationship between John and his wile, became very bad. His friend said that he discovered a whole different side of John.

单选题{{B}}第二篇{{/B}} Bathing in the sea in England a hundred years ago was not quite the light-hearted amusement that it is today. There are no running down from the hotel to the beach in a bath robe(长袍), no sunbathing, or lying about on the sands in bathing-dresses after the dip. Everything had to be done in an orderly and extremely polite manner. Mixed bathing was not allowed anywhere. Men and women each had their separate part of the beach, and they were not supposed to meet in the water. Bathing clothes were also closely controlled. Men usually wore simple bathing drawers and no more, but women were obliged to wear thick, cumbersome woolen garments that covered them completely from head to foot. These satisfied the demands of modesty, but they must have been extremely uncomfortable for swimming. Even thus decently covered, women were not supposed to show themselves on the beach while in bathing attire(浴衣). They had to wait their turn for a bathing machine, a sort of wooden cabin on wheels which was drawn right down to the water's edge by horses. On its seaward side a sort of hood or canopy(罩盖)stretched outwards and downwards over the water, completely hiding the bather until she was actually in the sea. There was a bathing woman in attendance, part of whose duty was to dip, in other words, to seize the bather as soon as she emerged and dip her forcibly under water two or three times. This was supposed to be for the benefit of her health, and no doubt it was all right in the hands of the gentle. But most bathing women were the reverse of gentle, and to be dipped by them must have been a strenuous form of exercise.

单选题I can't make it because of a {{U}}previous{{/U}} engagement.

单选题According to the science of aerodynamics,the shape of an object influences the amount of drag created by air flowing around it.

单选题Would you please call my husband as soon as possible?