单选题She exhibited great powers of endurance during the climb.

单选题It is laid down in the regulations that all members must carry their membership cards at all times.

单选题Engineering Ethics Engineering ethics is attracting increasing interest in engineering universities throughout the nation, at Texas A~M University, evidence of this interest in professional ethics culminated in the creation of a new course in engineering ethics, as well as a project funded by the National Science Foundation to develop material for introducing ethical issues into required undergraduate engineering courses. A small group of faculty and administrators actively supported the growing effort at Texas A~.M, yet this group must now expand to meet the needs of increasing numbers of students wishing to learn more about the value implications of their actions as professional engineers. The increasing concern for the value dimension of engineering is, at least in part, a result of the attention that the media has given to cases such as the Challenger disaster, the Kansas City Hyatt-Regency Hotel walkways collapse, and the Exxon oil spill. As a response to this concern, a new discipline, engineering ethics, is emerging. This discipline will doubtless take its place alongside such well-established fields as medical ethics, business ethics, and legal ethics. The problem presented by this development is that most engineering professors are not prepared to introduce literature in engineering ethics into their classrooms. They are most comfortable with quantitative concepts and often do not believe they are qualified to lead class discussions on ethics. Many engineering faculty members do not think that they have the time in an already overcrowded syllabus to introduce discussions on professional ethics, or the time in their own schedules to prepare the necessary material. Hopefully, the resources presented herein will be of assistance.

单选题More than 80 percent of US adults have a less than 10 - percent risk of developing heart disease in the next 10 years, according to a report in the Journal of the American College of Cardiology. Just 3 percent have a risk that exceeds 20 percent. Only 3 percent of US adults have a more than 10 percent 10 year risk of heart disease.A. RightB. WrongC. Not mentioned

单选题Mysterious Nazca Drawings One of the most mysterious archaeological spectacles in the world is the immense complex of geometrical symbols, giant ground-drawings of birds and animals, and hundreds of long, ruler-straight lines, some right across mountains, which stretch over 1,200 square miles of the Peruvian tablelands, at Nazca. Nazea was first revealed to modern eyes in 1926 when three explorers looked down on the desert from a hillside at dusk and briefly saw a Nazca line highlighted by the rays of the sun. But it was not until the Peruvian airforce took aerial photographs in the 1940s that the full magnificence of the panorama was apparent. Hundreds of what looked like landing strips for aircraft were revealed. There were eighteen bird-like drawings, up to 400 feet long; four-sided figures with two lines parallel; and long needle-like triangles which ran for miles. Among the many abstract patterns were a giant spider, a monkey, a shark, all drawn on the ground on a huge scale. The scale is monumental, but from the ground almost invisible and totally incomprehensible. The amazing fact about Nazca, created more than 1,500 years ago, is that it can only be appreciated if seen from the air. Many, therefore, regarded it as a prehistoric landing ground for visitors from outer space, but Jim Woodman, an American explorer, who was long fascinated by the mystery of Nazca, had a different opinion. He believed that Nazca only made sense if the people who had designed and made these vast drawings on the ground could actually see them, and that led him to the theory that the ancient Peruvians had somehow learned to fly, as only from above could they really see the extent of their handiwork. With this theory in mind, he researched into ancient Peruvian legends about flight and came to the conclusion that the only feasible answer was a hot-air balloon. To prove his theory, Woodman would have to make such a thing using the same fabrics and fibers that would have been available to the men of Nazca at the time. He started by gathering information from ancient paintings, legends, books and archaeological sites. After many attempts, Woodman built a balloon-type airship. It took him into the air, letting him have the sensation he had never had from viewing the same ground that he had seen many times. His flight was a modern demonstration of an ancient possibility.

单选题The policeman wrote down all the {{U}}particulars{{/U}} of the accident. A. secrets B. details C. benefits D. words

单选题Most Adults in U.S. Have Low Risk of Heart Disease More than 80 percent of U.S. adults have a less than 10-percent risk of developing heart disease in the next 10 years, according to a report in the Journal of the American College of Cardiology. Just 3 percent have a risk that exceeds 20 percent. "I hope that these numbers will give physicians, researchers, health policy analysts, and others a better idea of how coronary heart disease is distributed in the U.S. population," lead author Dr. Earl S. Ford, from the Centers for Disease Control and Prevention in Atlanta, said in a statement. The findings are based on analysis of data from 13,769 subjects, between 20 and 79 years of age, who participated in the Third National Health and Nutrition Examination Survey from 1988 to 1994. Overall, 82 percent of adults had a risk of less than 10 percent, 15 percent had a risk that fell between 10 to 20 percent, and 3 percent had a risk above 20 percent. The proportion of subjects in the highest risk group increased with advancing age, and men were more likely than women to be in this group. By contrast, race or ethnicity had little effect on risk distributions. Although the report suggests that most adults have a low 10-year risk of heart disease, a large proportion have a high or immediate risk, Dr. Daniel S. Berman, from Cedars-Sinai Medical Center in Los Angeles, and Dr. Nathan D. Wong, from the University of California at Irvine, note in a related editorial. Aggressive treatment measures and public health strategies are needed to shift the overall population risk downward, they add.

单选题The parents have to restrain their daughter from running out into the street. A. disallow B. reduce C. prevent D. confine

单选题The roof fell ______ he succeeded in saving his baby.A. afterB. asC. beforeD. until

单选题{{B}}第二篇{{/B}} Speech therapists divide their cases into common and complex. An example of a complex case is a person suffering from aphasia. This is the loss of the ability to under- stand and/or use speech. There are many causes of aphasia, including partial brain dam- age that leaves the individual with the physical ability to speak. If the individual is able to speak but does not, the therapist must determine the cause of such conduct. Often, speech therapists determine that problems are emotional and refer the individuals with such problems to psychologists or psychiatrists trained to help them. While a speech therapist is not trained to help persons with severe emotional disorders, the therapist does receive extensive training in such areas as anatomy(as it relates to speech, concentrating on the diaphragm, tongue, and palate), physics(particularly relating to sound), and language and communications. Some therapists take classes in elementary psychology as well. The speech therapist must be able to diagnose the type and severity of the speech defect, then prescribe a series of treatments. While some people with severe handicaps receive individual instruction, most patients are comfortable receiving group therapy with others who have the same problem. If a patient is found to have a physical handicap that is impeding his progress, he is sent to a doctor with whom the therapist works closely. Many therapists have a high success rate with their patients. No scientific studies have yet shown whether the intervention of the therapist was in fact the sole cause of the improvement of the patients, or whether time and maturity helped as well. A recent study has shown that persons who have not received speech therapy have often been "cured' of their problems merely by being around others without the problem. However, that same study showed that those few persons who were not treated by therapists had extremely low self-esteem and considered themselves " different" and "retarded". The therapists often are able to make the patients see that while they are different, the difference is not of their own making, that they have not done something wrong. Therapists try to reach children when they are very young, before they have had an opportunity to be teased by other children or made to feel they are "stupid". Therapists often work with whole families, encouraging the parents and siblings to listen to the patients, taking the time to help them feel they are an important part of the family, not just brushing them off because the effort of interpreting their speech is too great or time-consuming.

单选题Although a herd of African elephants may have up to one thousand members,Asiatic elephants live in bands of five to sixty animals. A. as many as B. more than C. fewer than D. at least

单选题Have you seen her lately ?

单选题Breakfast Studies show that children who eat breakfast do better in school. It doesn"t take much further thought to believe that adults will feel better and perform better at work as well. Whether you work at home, on the farm, at the office, at school, or on the road, it is not a good idea to skip (故意略去) breakfast. If we don"t eat breakfast, we are likely to become tired when our brains and bodies run low on fuel. By mid-morning, a lot of us grab a cup of coffee, or wolf down a sugary candy bar to wake up again. This might work for a few minutes, but by lunchtime we are hungry, bad-tempered, and perhaps our mood might make us a little more likely to make unhealthy choices at lunch. Eating a good breakfast sets the tone for the rest of the day. People who eat breakfast are generally more likely to maintain a healthy weight. Many people believe that they will lose weight if they skip meals, but that isn"t a good idea. The body expects to be refueled a few times a day, so start with a healthy breakfast. A healthy breakfast should contain some protein (蛋白质) and some fiber (纤维). Protein can come from meat, eggs, beans, or soy (大豆). Fiber can be found in whole cereals (谷物), grains or in fruits. A good example of a healthy breakfast might be something simple like a hard boiled egg, an orange, and a bowl of whole grain cereal with soy milk.

单选题You must try to wipe out the memory of these {{U}}horrible{{/U}} events. A. strange B. terrible C. unusual D. unfair

单选题Most Adults in U.S. Have Low Risk of Heart Disease More than 80 percent of U.S. adults have a less than 10-percent risk of developing heart disease in the next 10 years, according to a report in the Journal of the American College of Cardiology. Just 3 percent have a risk that exceeds 20 percent. "I hope that these numbers will give physicians, researchers, health policy analysts, and others a better idea of how coronary heart disease is distributed in the U.S. population," lead author Dr. Earl S. Ford, from the Centers for Disease Control and Prevention in Atlanta, said in a statement. The findings are based on analysis of data from 13,769 subjects, between 20 and 79 years of age, who participated in the Third National Health and Nutrition Examination Survey from 1988 to 1994. Overall, 82 percent of adults had a risk of less than 10 percent, 15 percent had a risk that fell between 10 to 20 percent, and 3 percent had a risk above 20 percent. The proportion of subjects in the highest risk group increased with advancing age, and men were more likely than women to be in this group. By contrast, race or ethnicity had little effect on risk distributions. Although the report suggests that most adults have a low 10-year risk of heart disease, a large proportion have a high or immediate risk, Dr. Daniel S. Berman, from Cedars-Sinai Medical Center in Los Angeles, and Dr. Nathan D. Wong, from the University of California at Irvine, note in a related editorial. Aggressive treatment measures and public health strategies are needed to shift the overall population risk downward, they add.

单选题{{U}}UP to now{{/U}}, the work has been easy.

单选题The polar lights, one of the most unusual phenomena in nature, is beautiful to behold.A. viewB. relateC. sketchD. withhold

单选题There are a {{U}}limited{{/U}} number of books on this subject in the library. A. small B. total C. good D. great

单选题The police tried {{U}}in vain{{/U}} to break up the protest crowds in front of the government building. A. unskillfully B. violently C. ineffectively D. eventually

单选题The book made a great {{U}}impact{{/U}} on its readers.