单选题In the western United States one can still find posts to which nineteenth-century cowboys hitched their horses.

单选题These are their motives for doing it.

单选题From my standpoint , you know, this thing is just funny.

单选题There are more men physicians than women physicians in the US

单选题There just two main sources of animal protein for chimps - the termites or colobus monkeys. "Mature males often hunt monkeys up trees, but females are almost always either pregnant or burdened with a clinging infant. This makes hunting difficult, "she says. "Adult females spend more time fishing for termites than males. "So becoming proficient at termite fishing could mean adult females eat better, "They can watch their offspring at the same time. The young of both sexes seen to pursue activities related to their adult sex roles at a very young age. " It is almost impossible for female chimps to hunt monkeys up trees.A. RightB. WrongC. Not mentioned

单选题The view from my bedroom window was absolutely U spectacular/U．

单选题A corporation is a business organization that is formed to act as a single person and is legally endowed with particular rights and duties.A. by wordB. by lawC. laudablyD. liberally

单选题He is determined to {{U}}consolidate{{/U}} his power

单选题Hospital Mistreatment According to a study, most medical interns report experiencing mistreatment, including humiliation by senior doctors, 1 threatened, or physical abuse in their first year out of medical school. The findings come from analysis of the 2 a 13-page survey mailed in January 1991 to 1,733 second-year residents. The survey and 3 appear in the April 15th issue of the Journal of the American Medical Association. Overall, out of the 1,277 residents 4 completed surveys, 1,185 said that they had experienced at least one incident of mistreatment in their intern year. 5 reporting incidents where they were abused, more than 45% of the residents said they had witnessed at least one incident where other persons 6 false medical records. Moreover, nearly three quarters of the residents said they had witnessed mistreatment of patients by other residents, attending physicians, or nurses. Almost 40% said patient mistreatment was a frequent 7 . More than 10% of the residents said they were 8 to have enough sleep, and the average number of hours 9 sleep was 37.6. The average on-call time during a 10 week was 56.9 hours, but about 25% of the residents said their on-call assignments were more than 80 hours some weeks. 11 30% of the residents said they experienced some type of sexual harassment or discrimination, verbal abuse was the most common problem cited. When abusive incidents were limited to events occurring three or more times, 53% of the respondents reported that they 12 belittled or humiliated by more senior residents, while just over 21% reported someone taking credit for their work. Being " 13 tasks for punishment," "being pushed, kicked or hit," and 14 someone "threatening your reputation or career," were reported as a more 15 occurrence by over 10% of the responding residents.

单选题His description was pretty {{U}}vague{{/U}}. A.imprecise B.concise C.unpolished D.elementary

单选题During the 1800's and early 1900's, new academic disciplines such as chemistry and physics made great headway. A. sacrifice B. forefront C. preconceptions D. progress

单选题 阅读下面这篇短文，短文后列出了7个句子，请根据短文的内容对每个句子作出判断。如果该句提供的是正确信息，请选择A项；如果该句提供的错误信息，请选择B项；如果该句的信息文章中没有提及，请选择C项。 {{B}} Using HIV Virus to Cure Cancer{{/B}} Scientists are planning to use human immunodeficiency (免疫缺陷) virus (HIV), one of mankind's most feared viruses, as a carrier of genes which can fight cancer and a range of diseases that cannot be cured. The experts say HIV has an almost perfect ability to avoid the body's immune (免疫的) defenses, making it ideal for carrying replacement genes into patients' bodies, according to the Observer. A team at the California-based Salk Institute, one of the world's leading research centers on biological sciences, has created a special new breed of HIV and has started negotiations with the US Food and Drug Administration (FDA) to begin clinical gene therapy (治疗) trials this year. The first trials are expected to involve patients suffering from cancers that cannot be cured by surgery although project leader Professor Inder Verma said the HIV technique would have "far wider applications". The plan remains very likely to cause controversy since it involves making use of a virus which has caused more than 22 million deaths around the world in the past two decades. Verma said that the idea of using HIV for a beneficial purpose was "shocking" but the fierce nature of HIV had disappeared by having all six of the potentially deadly genes removed. Illnesses such as various cancers are caused when a gene in a patient's body fails to work properly. In the past two years, breakthroughs in genetics (遗传学) have led gene therapy scientists to try and replace the genes that do not function normally. Unfortunately, the body's immune defenses have been known to attack the modified genes and make them lose their effects before they can start their task and progress in the field has been held up by the lack of a suitable carrier. The HIV virus has the ability to escape from, and then destroy, the immune defense ceils designed to protect our bodies and this makes it attractive to scientists as a way of secretly conveying replacement genes into patients' bodies.

单选题Jack Uconsumes/U a Pound of cheese a day.

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

单选题The room was furnished with the simplest essentials, a bed, a chair, and a table.A. suppliedB. gatheredC. graspedD. made

单选题He was reluctant to admit he was wrong.

单选题 Sleep Problems Plague the Older Set Older Americans often have difficulty getting a good night's rest. It's a huge quality-of-life problem, experts say, because contrary to popular belief, seniors require about the same amount of sleep as younger adults. "Sleep problems and sleep disorders are not an inherent (固有的) part of aging," said Dr. Harrison G. Bloom, an associate clinical professor of geriatrics (老年病学) and medicine at the Mount Sinai School of Medicine in New York City. "It's pretty much of a myth that older people need less sleep than younger people." Yet in a study published recently in The American Journal of Medicine, researchers found that more than half of older Americans have problems getting the sleep they need. Older people tend to have "sleep fragmentation", meaning they wake up more often during the night, said study author Dr. Julie Gammck, an assistant professor of medicine in the Division of Geriatric Medicine at St. Louis University. They also seem to get less "REM" sleep, the type of sleep during which rapid eye movement occurs, Bloom added. It's unclear what role these naturally occurring changes in sleep patterns have on a person's quality of life, Bloom said. "What is important, though, is that older people often have actual sleep disorders and problems with sleep," he said. And, experts say, there is usually more than one cause. "Sleep trouble in older adults is typically associated with acute and chronic illnesses, including specific sleep disorders like sleep apnea (呼吸暂停) and restless leg syndrome that appear with greater frequency in older populations," said Michael V. Vitiello, a professor of psychiatry and behavioral sciences and associate director of the University of Washington's Northwest Geriatric Education Center. Taking multiple medications, as many older people do, can also lead to fatigue and "hypersomnia", or being tired all the time, Bloom added. Another big problem, he noted, is depression and anxiety. "Those are very commonly associated with sleep problems." Despite the prevalence (流行) of sleep difficulties in older adults, many patients aren't getting the help they need. As a result, problems like insomnia (失眠), restless leg syndrome and sleep apnea are underdiagnosed and undertreated, Bloom said.

单选题It was obvious that she was not going home.

单选题A prominent advocate of woman suffrage, Susan B. Anthony lectured throughout the Unites States for the cause of women's rights.A. raised moneyB. arranged meetingsC. wrote articlesD. gave speeches

单选题Approaches to Understanding Intelligences It pays to be smart, but we are not all smart in the same way. You may be a talented musician, but you might not be a good reader. Each of us is different. Psychologists disagree about what is intelligence and what are talents or personal abilities. Psychologists have two different views on intelligence. Some believe there is one general intelligence. Others believe there are many different intelligences. Some psychologists say there is one type of intelligence that can be measured with IQ tests. These psychologists support their view with research that concludes that people who do well on one kind of test for mental ability do well on other tests. They do well on tests using words, numbers or pictures. They do well on individual or group tests, and written or oral tests. Those who do poorly on one test, do the same on all tests. Studies of the brain show that there is a biological basis for general intelligence. The brains of intelligence people use less energy during problem solving. The brain waves of people with higher intelligence show a quicker reaction. Some researchers conclude that differences in intelligence result from differences in the speed and effectiveness of information processing by the brain. Howard Gardner, a psychologist at the Harvard School of Education, has four children. He believes that all children are different and shouldn"t be tested by one intelligence test. Although Gardner believes general intelligence exists, he doesn"t think it tells much about the talents of a person outside of formal schooling. He thinks that the human mind has different intelligences. These intelligences allow us to solve the kinds of problems we are presented with in life. Each of us has different abilities within these intelligences. Gardner believes that the purpose of school should be to encourage development of all of our intelligences. Gardner says that his theory is based on biology. For example, when one part of the brain is injured, other parts of the brain still work. People who cannot talk because of brain damage can still sing. So, there is not just one intelligence to lose. Gardner has identified 8 different kinds of intelligence, linguistic, mathematical, spatial, musical, interpersonal, intrapersonal, body-kinesthetic (身体动觉的), and naturalistic.