单选题 下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。请仔细阅读短文并根据短文内容回答其后面的问题，从4个选项中选择1个最佳答案。{{B}}第一篇{{/B}} {{B}} US Blacks Hard-hit by Cancer{{/B}} Death rates from cancer are falling for all Americans, but black Americans are still more likely to die of cancer than whites, the American Cancer Society said Monday. In a special report on cancer and blacks, the organization said blacks are usually diagnosed with cancer later than whites, and they are more likely to die of the disease. This could be because of unequal access to medical care, because blacks are more likely to have other diseases like diabetes as well, and perhaps because of differences in the biology of the cancer itself, the report added. "In general, African Americans have less likelihood of surviving five years after diagnosis than whites for all cancer sites and all stages of diagnosis," the report said. "In describing cancer statistics for African Americans, this report recognizes that socioeconomic disparities and unequal access to medical care may underlie many of the differences associated with race." The cancer society said blacks should be encouraged to get check-ups earlier, when cancer is more treatable, and it said more research was needed to see if biological differences play a role. "The new statistics emphasize the continuing importance of eliminating these social disparities through public policy and education efforts," the organization said in a statement. But it also noted a drop in cancer death rates. "Cancer death rates in both sexes for all sites combined have declined substantially among African Americans since 1992, as have incidence rates," says the report. "Increased efforts to improve economic conditions in combination with education about the relationship of lifestyle choices to cancer could further reduce the burden of cancer among African Americans." About 36 million Americans describe themselves as black, representing about 12 percent of the population.

单选题China does a lot of trade with many countries. A. a great deal of B. a great many of C. a large number of D. a great level of

单选题Medicine depends on other fields for basic information, particularly some of their specializec branches.

单选题Common Problems, Common Solutions The chances are that you made up your mind about smoking a long time ago—and decided it"s not for you. The chances are equally good that you know a lot of smokers—there are, after all about 60 million of them, work with them, play with them, and get along with them very well. And finally it"s a pretty safe bet that you"re open-minded and interested in all the various issues about smokers and nonsmokers-or you wouldn"t be reading this. And those three things make you incredibly important today. Because they mean that yours is the voice—not the smoker"s—and not the anti-smoker"s— that will determine how much of society"s efforts should go into building walls that separate us and how much into the search for solutions that bring us together. For one tragic result of the emphasis on building walls is the diversion of millions of dollars from scientific research on the causes and cures of diseases which, when all is said and done, still strike the nonsmoker as well as the smoker. One prominent health organization, to cite but a single instance, now spends 28 cents of every publicly-contributed dollar on "education"(much of it in anti-smoking propaganda) and only 2 cents on research. There will always be some who want to build walls, who want to separate people from people, and up to a point, even these may serve society. The anti-smoking wall-builders have, to give them their due, helped to make us all more keenly aware of choice. But our guess, and certainly our hope, is that you are among the far greater number who know that walls are only temporary at best, and that over the long run, we can serve society"s interests better by working together in mutual accommodation. Whatever virtue walls may have, they can never move our society toward fundamental solutions. People who work together on common problems, common solutions, can.

单选题The April edition ({{U}}covering{{/U}} copies, overseas deliveries and office cleaning) is now available.

单选题A neutron is so tiny that it would take ten trillion of them to cover a square inch.

单选题Stress and Heart Disease If you often feel angry and overwhelmed, like the stress in your life is spinning out of control, then you may be hurting your heart. If you don"t want to break your own heart, you need to learn to take charge of your life where you can—and recognize there are many things beyond your control. So says Dr. Robert S. Eliot, author of a new book titled From Stress to Strength: How to Lighten Your Load and Save Your Life . He"s a clinical professor of medicine at the University of Nebraska. Eliot says there are people in this world whom he calls "hot reactors". For these people, being tense may cause tremendous and rapid increases in their blood pressure. Eliot says researchers have found that stressed people have higher cholesterol levels, among other things. "We"ve done years of work in showing that excess alarm or stress chemicals can literally burst heart muscle fibers. When that happens it happens very quickly, within five minutes. It creates many short circuits, and that causes crazy heart rhythms. The heart beats like a bag of worms instead of a pump. And when that happens, we can"t live." Eliot, 64, suffered a heart attack at age 44. He attributes some of the cause to stress. For years he was a "hot reactor". On the exterior, he was cool, calm and collected, but on the interior, stress was killing him. He"s now doing very well. The main predictors of destructive levels of stress are the FUD factors—fear, uncertainty and doubt— together with perceived lack of control, he says. For many people, the root of their stress is anger, and the trick is to find out where the anger is coming from. "Does the anger come from a feeling that everything must be perfect?" Eliot asks. One step to calming down is to recognize you have this tendency. Learn to be less hostile by changing some of your attitudes and negative thinking. Eliot recommends taking charge of your life. "If there is one word that should be substituted for stress, it"s control. Instead of the FUD factors, what you want is the NICE factors—new, interesting, challenging experiences." "You have to decide what parts of your life you can control," he says. "Stop where you are on your trail and say, "I"m going to get my compass out and find out what I need to do."" He suggests that people write down the six things in their lives that they feel are the most important things they"d like to achieve. Ben Franklin did it at age 32. "He wrote down things like being a better father, being a better husband, being financially independent, being stimulated intellectually and remaining even-tempered—he wasn"t good at that." From Eliot"s viewpoint, the other key to controlling stress is to realize that there are other troublesome parts of your life over which you can have little or no control—like the economyand politicians.

单选题The conference explored the possibility of closer trade links. A. rejected B. investigated C. proposed D. exposed

单选题This text is too difficult to comprehend.

单选题Almost all economists agree that nations gain by trading with one another.

单选题From 1994 to 1998 the number of Americans who had donated a kidney reached 244.

单选题TV Commercials and Print Ads Despite the fact that advertisers spend ＄ 44 billion on the major television networks and cable TV advertising, a new study show that consumers think print ads more entertaining and less offensive than television commercials. They study, conducted by Video Storyboard Tests in New York, showed that more consumers considered prints ads "artistic" and "enjoyable". The 2,000 consumers surveyed blasted TV ads compared to their print counterparts: 34 percent of respondents thought print ads were artistic, compared with 15 percent for television ads; 35 per cent thought print ads were enjoyable, compared to 13 percent for television; and, most surprising, 33 percent of consumers felt print ads were entertaining, compared to only 18 percent for TV ads. Much of the artistic impact and positive reaction to print ads comes from the illustrations used. The illustration is primary in creating the mood for a print ad, which ultimately affects consumers' feelings about the image of the brand. While the study's sponsors were somewhat surprised by the survey results, some industry executives felt that print ads were finally getting the credit they deserve. Richard Kirshenbaum, chair and chief creative officer of Kirshenbaum, Bond Partners, a New York advertising and public relations firm, is one such believer. In fact, Kirshenbaum says that when he looks to hire a person for a creative position in his agency, "I always look at the print book first because I think it is harder to come up with a great idea on a single piece of paper. " But as impressed as computers say they are by the aesthetics (美学)and style of print ads, televisions executives (as you might expect )dismiss the findings. One network official said, "Nothing will replace the reach and magnitude of an elaborately produced television spot. TV ads get talked about. Print ads don't. /

单选题While we don"t agree, we continue to be friends.

单选题Everyday Tom had nothing to do but pass away time. A. catch up with B. waste C. kill D. save

单选题Many of these 'decision-support' programs are poorly conceived and can be a waste of both time and money.A. planB. gameC. computerD. software

单选题Accompanied by cheerful music, we began to dance.

单选题I {{U}}notified{{/U}} him that my address had changed.

单选题Such a database would be extremely costly to set up .

单选题Blindness first began creeping up on Barbara Campbell when she was a teenager, and by her late 30s, her eye disease had stolen what was left of her sight. Reliant (依赖于) on a talking computer for reading and a cane for navigating New York City, where she lives and works, Ms. Campbell, now 56, would have been thrilled to see something. Anything. Now, as part of a striking experiment, she can. So far, she can detect burners on her stove when making a grilled cheese, her mirror flame, and whether her computer monitor is on. As part of the experiment, Ms. Campbell now are able to all the following EXCEPTA. walking in the city without the cane.B. seeing her mirror flame.C. telling whether her computer monitor is on.D. detecting burners on her stov

单选题Campbell believes people should pay more attention to health promotion and disease prevention because most of these diseases