单选题Which of the following is NOT true of working class Americans?

单选题The loss of her cat was the greatest grief the child had known. A. trial B. tragedy C. misconduct D. sorrow

单选题The city has decided to do away with all the old buildings in its center.

单选题Many fine cooks {{U}}insist on {{/U}}ingredients (成分) of the highest quality.

单选题Many of their ideas are being incorporated into orthodox medical treatment. A. acceptable B. conservative C. western D. conventional

单选题Hypertension Drugs Found to Cut Risk of Stroke Australian doctors declared Monday that a cocktail of simple antihypertensive drugs can lower the risk of patients suffering a repeat stroke 1 more than a third. This is the result of their research. The research has been 2 highly as a major breakthrough in stroke prevention. Strokes kill 5 million people a year, and more than 15 million suffer non-fatal strokes that often 3 them with useless limbs, broken speech and other serious disabilities. One in five stroke 4 goes on to have a second, often fatal, stroke within five years of the first. An international six-year study of 6,100 patients directed from Sydney University found that by taking two blood pressure-lowering drugs, the risk of secondary strokes can be reduced up to 40 percent. Even taking one of the commonly 5 drugs can cut the risk by a third, the study said. The drugs in combination were 6 even in patients who did not have high blood pressure, the researchers said. They even found that the risk of another stroke could be 7 by three quarters among the one-in-ten patients who had suffered a cerebral hemorrhage (脑出血), the worst type of stroke, 8 there is direct bleeding into the brain. Stephen McMahon, who 9 the research at the Milan congress of the European Society of Hypertension, said about 50 million people were alive who had suffered at least one stroke. "If most of those patients were able to get 10 to this treatment, it would result 11 maybe the avoidance of half a million strokes a year," the professor told Australia"s ABC Radio. McMahon said doctors had 12 known that lowering the blood pressure of those with hypertension could help prevent strokes. "What we have shown for the first time is that it does not really 13 what your blood pressure is; if you have had a stroke, then lowering blood pressure will produce large 14 , to begin with—even for people whose blood pressure is average or below average," he said. McMahon said the Milan gathering had heralded (预示) the research as a "major breakthrough in the care of patients 15 strokes—perhaps the biggest step forward that we have made in the last couple of decades".

单选题 下面有3篇短文，每篇短文后有5道题，每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题。{{B}}第一篇{{/B}} {{B}} An Unusual Experience at Sea{{/B}} It was early one morning in February 1972 when Mayoral and his partner Santos Luis Perez set out to fish in Laguna San Ignacio. Hundreds of gray whales were swimming in the three-mile-long, one-mile-wide inlet. This was usual between December and April, for the whales breed in the protected inlets of Baja, the final destination of their annual 6,000-mile migration from the Arctic. Mayoral and Perez stayed as for as possible from the spouting (喷涌) creatures, because the whales were said to smash boats with their powerful flukes (鲸尾的叶). Mayoral, who had 16 years' experience at sea, knew no one who had been close to a healthy gray whale and lived. As Mayoral rowed to catch the outgoing (退出去的) tide, he saw, straight ahead, a whale approaching. Heart pounding, the 31-year-old turned the little wooden boat and pulled hard for shore. Try as he might, however, he could not row over the huge beast. In moments, it overtook them. Expecting the worst, the fishermen dropped to their knees and made the sign of the cross. The whale raised its nine-foot head out of the water and looked at them. Then, remarkably, it began to rub gently against the boat. Sinking and resurfacing (重新露出水面) on opposite sides of the boat, the whale continued its gentle rubbing for almost an hour. At first the men prayed, frozen in fear. But gradually Mayoral's terror gave way to curiosity. He was tempted to reach out and touch this oddly unthreatening monster, but a lifetime of caution kept him still. At last, having finished with whatever its purpose had been, the whale disappeared below the surface. Some time passed before either man spoke. Then they headed home. To his wife, Mayoral said only, "No fish today." But word spread through the cluster of small wooden houses near the salt-water lake. A strange thing had happened: one of the whales had tried to touch the men, and the men had returned unharmed. Why? In nights to come, by faint kerosene lamps, Mayoral and Perez told the story. They and other fishermen struggled to understand. What did the whale want?

单选题People of different cultures smile when they understand each other.

单选题Rock climbing is {{U}}hazardous{{/U}}．

单选题Please do not hesitate to call me if I can be of further assistance.

单选题 下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。{{B}}第一篇{{/B}} {{B}}Medical journals{{/B}} Medical journals are publications that report medical information to physicians and other health professionals. In the past, these journals were available only in print. With the development of electronic publishing, many medical journals now have Web sites on the Internet, and some journals publish only online. A few medical journals, like the Journal of the American Medical Association, are considered general medical journals because they cover many fields of medicine. Most medical journals are specialty journals that focus on a particular area of medicine. Medical journals publish many types of articles. Research articles report the results of research studies on a range of topics varying from the basic mechanisms of diseases to clinical trials that compare out~ comes of different treatments. Review articles summarize and analyze the information available on a specific topic based on a careful search of the medical literature, Because the results of individual research studies can be affected by many factors, combining results from different studies on the same topic can be helpful in reaching conclusions about the scientific evidence for preventing, diagnosing or treating a particular disease. Case conferences and case reports may be published in medical journals to educate physicians about particular illnesses and how to treat at them. Editorials in medical journals are short essays that express the views of the authors, often regarding a re- search or review article published in the same issue. Editorials provide perspective on how the current article fits with other information on the same topic. Letters to the editor provide a way for readers of the medical journal to express comments ,questions or criticisms about articles published in that journal.

单选题The compulsory courses refer to those that you have to take.A. simpleB. voluntaryC. practicalD. required

单选题The question "Are you a man or a mouse?" really means to ask whether you believe

单选题I seldom watch TV. A. rarely B. frequently C. normally D. occasionally

单选题{{B}}第一篇{{/B}} Coronary heart disease(冠心病) is a term used to describe conditions like angina(心绞痛) or heart attack. Many people suffer from heart disease. If you have had a heart attack or suffer from angina it is very important that you take positive action now in order to keep your heart as healthy as possible. This article outlines steps you can take in order to help achieve this. A number of factors have been known to increase the risk of your coronary heart disease. There are often referred to as "risk factors". But some of these factors can be changed or modified to help improve your condition. These include: high Mood cholesterol(胆固醇), high blood pressure, smoking, poor diet, lack of exercise, high alcohol intake, obesity, diabetes and stress. High blood cholesterol has been shown to be one of the most important risk factors, yet only about half of coronary heart-disease patients have had their blood cholesterol checked. When blood cholesterol is high, it builds up in the walls of the arteries (blood vessels), causing them to narrow. The narrowing can then begin to restrict the blood flow to the heart. Under these conditions patients will often experience chest pain or tightness, known as angina. In some cases narrowing of the arteries that supply blood to the heart can become so severe that it blocks the artery. More usually, however, a partial blockage triggers a blood clot, causing a heart attack, which can cause permanent damage to part of the heart muscle. To reduce the build up of cholesterol in the artery walls, and so reduce the risk of a heart attack, cholesterol lowering has become an essential part of treatment for people with coronary heart disease. Reductions in blood cholesterol have been shown to provide major benefits for patients who have angina or have had a heart attack, such as reducing the risk of another heart attack occurring and improving survival. Your cholesterol should be checked regularly, and modified if necessary, along with all the other factors. This will help to ensure that you minimise the risk of suffering future heart problems like another heart attack. It is better for your heart if all the risk factors are reduced by a little, rather than concentrating on one and ignoring the others. Changes in lifestyle can often help to reduce these risk factors. These include stop-ping smoking or cutting down the number of cigarettes you smoke, a healthier diet and a healthy body weight, regular exercise, and not drinking more than the recommended amount of alcohol. A healthier diet should consist of reducing the amount of saturated fat(饱和脂肪) you eat and balancing this with an intake of non-and poly-unsaturated fats and increased consumption (单链和多链不饱和脂肪) of cereal foods, vegetables and fruit. Sometimes changes in lifestyle are not enough to reduce factors like cholesterol or blood pressure sufficiently, and so drugs may be prescribed. These drugs should always be combined with changes in lifestyle.

单选题F. D. Roosevelt When President Franklin D. Roosevelt collapsed and died of a stroke in April 12, 1945, the nation went into a state of depression unknown since the death of Abraham Lincoln. Roosevelt had become inseparably linked with a series of national crises—in his case the Great Depression and World World War Ⅱ. And like Lincoln, Roosevelt was viewed as a savior, a man who had redeemed his people. Put simply, F. D. Roosevelt enjoyed the elusive charisma (引起 大众敬仰的领袖特质) so prized but politicians. Blessed with enormous self-confidence and an ingratiating personality, he inspired tremendous loyalty among most Americans. They loved him and put him in the White House on four separate occasions 1932, 1936, 1940, and 1944. But like all charismatic leaders, Roosevelt also generated tremendous hostility in some circles, particularly in corporate boardroom and the parlors of the well-to-do(富人的会客厅). They viewed him as a "traitor to his class", a politician so seduced by power (受权势诱惑)that he posed a threat to property and the social order. Franklin D. Roosevelt was a complicated man, a beloved acquaintance of thousands but an intimate of very few. Bon rich and raised in pampered splendor (优越受宠的环境), he nevertheless led a virtual revolution in public policy, giving ethnic minorities, labor unions, and poor people their first taste of influence at federal level. Although Roosevelt inspired a legion of intellectuals to invest their energies in public service, he was not an innovative thinker himself. He preferred the give-and-take of politics, and the inherent excitement of its risks, to the intricate nuts and bolts of social and economic policy. His public outward character was overwhelming, but there was also a private side to his life that the American people understood only superficially. During the Summer of 1921, little more than a decade before he became president, Roosevelt contracted polio, or infantile paralysis, a disease that crippled him for the rest of his life.

单选题The police have conducted the extensive investigation for this murdering.

单选题She stood there, trembling with fear.

单选题If you make a mistake, delete the characters you have entered using the backspace delete key.A. removeB. recoverC. installD. restart

单选题The manager allocates duties to the clerks.