单选题Information technology that helps doctors and patients make decisions has been around for a long time. Crude online tools like WebMD get millions of visitors a day. But Watson is a different beast. According to IBM, it can digest information and make recommendations much more quickly, and more intelligently, than perhaps any machine before it—processing up to 60 million pages of text per second, even when that text is in the form of plain old prose, or what scientists call "natural language. " That's no small thing, because something like 80 percent of all information is "unstructured. " In medicine, it consists of physician notes dictated into medical records, longwinded sentences published in academic journals, and raw numbers stored online by public health departments. At least in theory, Watson can make sense of it all. It can sit in on patient examinations, silently listening. And over time, it can learn and get better at figuring out medical problems and ways of treating them the more it interacts with real cases. Watson even has the ability to convey doubt. When it makes diagnoses and recommends treatments, it usually issues a series of possibilities, each with its own level of confidence attached. Medicine has never before bad a tool quite like this. And at an unofficial coming-out party in Las Vegas last year, during the annual meeting of the Healthcare Information and Management Systems Society, more than 1,000 professionals packed a large hotel conference hall, and an overflow room nearby, to hear a presentation by Marty Kohn, an emergency-room physician and a clinical leader of the IBM team training Watson for health care. Standing before a video screen that dwarfed his large frame, Kohn described in his husky voice how Watson could be a game changer—not just in highly specialized fields like oncology but also in primary care, given that all doctors can make mistakes that lead to costly, sometimes dangerous, treatment errors. Drawing on his own clinical experience and on academic studies, Kohn explained that about one-third of these errors appear to be products of misdiagnosis, one cause of which is "anchoring bias": human beings' tendency to rely too heavily on a single piece of information. This happens all the time in doctors' offices, clinics, and emergency rooms. A physician hears about two or three symptoms, seizes on a diagnosis consistent with those, and subconsciously discounts evidence that points to something else. Or a physician hits upon the right diagnosis, but fails to realize that it's incomplete, and ends up treating just one condition when the patient is, in fact, suffering from several. Tools like Watson are less prone to those failings. As such, Kohn believes, they may eventually become as ubiquitous in doctors' offices as the stethoscope. "Watson fills in for some human limitations," Kohn told me in an interview. "Studies show that humans are good at taking a relatively limited list of possibilities and using that list, but are far less adept at using huge volumes of information. That's where Watson shines; taking a huge list of information and winnowing it down. /

单选题The days when the only fender a businessman needed to stave off a midlife crisis was on the end of a Ferrari are gone.

单选题Greater efforts to increase agricultural production must be made if food shortage ______ avoided.

单选题Professor Jeffrey's lecture on the recycling of waste paper and other garbage will show ______ can still be improved.

单选题He is said to be Uequal/U to any task whatever.

单选题We don't______any difficulties in completing the project so long as we keep within our budget. A. foresee B. fabricate C. infer D. inhibit

单选题Laura, who comes from a wealthy family, spends most of her time enjoying herself, but takes ______ pains with her lessons. A. little B. few C. a little D. a few

单选题The U.S. may so far have enjoyed good luck in escaping a direct SARS hit, but officials aren"t leaving anything to chance. The best hope for averting a SARS epidemic at home will be to keep SARS out at the nation"s borders. Federal immigration laws authorize immigration authorities to exclude non-citizens who are determined to have a "communicable disease of public health significance". Immigration law also authorizes the President by proclamation to suspend the entry of any group of aliens whose entry he deems to be detrimental to the interests of the United States. This little-used power could be deployed to exclude all aliens from affected areas, a policy Taiwan has recently implemented. Under the Public Health Service Act, any individual (citizens included) may be quarantined at an international port of entry if they are reasonably believed to be carrying a designated communicable disease. As of an April 4 Executive Order by President Bush, SARS is now a designated disease. Thus, in tandem with airline screening, federal health authorities are carefully monitoring travelers from affected areas in Asia for SARS symptoms. With an estimated 25,000 individuals entering the country legally from Asia on a daily basis, that is a tall order. A single SARS-infected person getting through the net could bring down the border strategy. The U.S. government might also reinforce the border strategy through restrictions on travel by American citizens to affected areas. In a series of Cold War era decisions, the Supreme Court upheld international travel restrictions for national security reasons, and one can imagine the same rationale applying to a public health emergency. How practical it would be to prohibit—and police—a travel ban to countries such as China is another question. The initial SARS defense, then, hinges on effective border control. But U.S. borders are far from under control. There are an estimated 8～9 million undocumented aliens now in the United States, a figure growing by as many as 500,000 per year. Asia is the largest contributor to undocumented immigration outside the western hemisphere, funneling illegal aliens into the United States through elaborate smuggling networks. SARS could just as easily make serious inroads into the U.S. through this backdoor rather than the front.

单选题From the third paragraph, we can conclude that______.

单选题At all ages and at all stages of life, fear presents a problem to almost everyone. "We are largely the playthings of our fears," wrote the British author Horace Walpole many years ago. "To one, fear of the dark; to another, of physical pain; to a third, of public ridicule; to a fourth, of poverty; to a fifth, of loneliness—for all of us our particular creature waits in a hidden place." Fear is often a useful emotion. When you become frightened, many physical changes occur within your body. Your heartbeat and responses quicken; your pupils expand to admit more light; large quantities of energy-producing adrenaline (肾上腺素) are poured into your bloodstream. Confronted with a fire or accident, fear can fuel life-saving flight. Similarly, when a danger is psychological rather than physical, fear can force you to take self-protective measures. It is only when fear is disproportional to the danger at hand that it becomes a problem. Some people are simply more vulnerable to fear than others. A visit to the newborn nursery of any large hospital will demonstrate that, from the moment of their births, a few fortunate infants respond calmly to sudden fear-producing situations such as a loudly slammed door. Yet a neighbor in the next bed may cry out with profound fright. From birth, he or she is more prone to learn fearful responses because he or she has inherited a tendency to be mote sensitive. Further, psychologists know that our early experiences and relationships strongly shape and determine our later fears. A young man named Bill, for example, grew up with a father who regarded each adversity as a temporary obstacle to be overcome with imagination and courage. Using his father as a model, Bill came to welcome adventure and to trust his own ability to solve problem. Phil"s dad, however, spent most of his time trying to protect himself and his family. Afraid to risk the insecurity of a job change, he remained unhappy in one position. He avoided long vacations because "the car might break down". Growing up in such a home, Phil naturally learned to become fearful and tense.

单选题it is not considered ______to pick one' s teeth in public.

单选题One word describes what makes Singapore work: {{U}}discipline{{/U}}.

单选题The next time the men were taken up onto the deck, Kunta made a point of looking at the man behind him in line, the one who lay beside him to the left when they were below. He was a Serer tribesman much older than Kunta, and his body, front and back, was creased with whip cuts, some of them so deep and festering that Kunta, felt badly for having wished sometimes that be might strike the man in the darkness for moaning so steadily in his pain. Staring back at Kunta, the Serer's dark eyes were full of fury and defiance. A whip lashed out even as they stood looking at each other--this time at Kunta, spurring him to move ahead. Trying to roll away, Kunta was kicked heavily in his ribs. But somehow he and the gasping Wolof managed to stagger back up among the other men from their shelf who were shambling toward their dousing with bucked of seawater. A moment later, the stinging saltiness of it was burning in Kunta's wounds, and his screams joined those of others over the sound of the drum and the wheezing thing that had again begun marking time for the chained men to jump and dance for the toubob. Kunta and the Wolof were so weak from their new beating that twice they stumbled, but whip blows and kicks sent them hopping clumsily up and down in their chains. So great was his fury that Kunta was barely aware of the women singing "Toubob fa!" And when he had finally been chained back down in his place in the dark hold, his heart throbbed with a lust to murder toubob. Every few days the eight naked toubob would again Come into the stinking darkness and scrape their tubs full of the excrement that had accumulated on the shelves where the chained men lay. Kunta would lie still with his eyes staring balefully in hatred, following the bobbing orange lights, listening to the toubob cursing and sometimes slipping and tailing into the slickness underfoot--so plentiful now, because of the increasing looseness of the men's bowels, that the filth had begun to drop off the edges of the shelves down into the aisleway. The last time they were on deck, Kunta had noticed a man limping on a badly infected leg. This time the man was kept up on deck when the rest were taken back below. A few days later, the women told the other prisoners in their singing that the man's leg had been cut off and that one of the women had been brought to tend him, but that the man had died that night and been thrown over the side. Starting then, when the toubob came to clean the shelves, they also dropped re& hot pieces of metal into pails of strong vinegar. The clouds of acrid steam left the hold smelling better, but soon it would again be overwhelmed by the choking stink. It was a smell that Kunta felt would never leave his lungs and skin. The steady murmuring that went on in the hold whenever the toubob were gone kept growing in volume and intensity as the men began to communicate better and better with one another. Words not understood were whispered from mouth to ear along the shelves until someone who knew more than one tongue would send back their meanings. In the process, all of the men along each shelf learned new words in tongues they had not spoken before. Sometimes men jerked upward, bumping their heads, in the double excitement of communicating with each other and the fact that it was being done without the toubob's knowledge. Muttering among themselves for hours, the men developed a deepening sense of intrigue and of brotherhood. Though they were of different villages and tribes, the feeling grew that they were not from different peoples or places.

单选题He is in bed with a bad cold, feeling pretty ______. A. spacious B. wide C. sufficient D. wretched

单选题In general, the______amount that a student spends for housing should be held to one-fifth of the total for living expenses. A. acceptable B. advisable C. available D. applicable

单选题What is so special about intuitive talent? Extensive research on brain skills indicates that those who score as highly intuitively on such test instruments as the Myers-Briggs Type Indicator tend to be the most innovative in strategic planning and decisionmaking. They tend to be more insightful and better at finding new ways of doing things. In business, they are the people who can sense whether a new product idea will "fly" in the marketplace. They are the people who will generate ingenious new solutions to old problems that may have festered for years. These are the executives that all organizations would love to find. But, surprisingly, organizations often thwart, block, or drive out this talent--the very talent they require for their future survival! At the very least, most organizations lack well- established human-capital programs designed to search for and consciously use their employees" intuitive talent in the strategic-planning process. As a result, this talent is either not used, suppressed, or lost altogether. Typically, highly intuitive managers work in an organizational climate that is the opposite of that which would enable them to flourish and to readily use their skills for strategic decisionmaking. This climate can be characterized as follows: New ideas are not readily encouraged. Higher managers choose others who think much as they do for support staff. Unconventional approaches to problemsolving encounter enormous resistance. Before long, the intuitive executive begins to emotionally withdraw, slowly but surely reducing his or her input and often leaving the organization altogether. To achieve higher productivity in the strategic-planning and decisionmaking process, clearly what is needed is an organizational climate in which intuitive brain skills and styles can flourish and be integrated with more-traditional management techniques. The organization"s leadership must have a special sensitivity to the value of intuitive input in strategic decisionmaking and understand how to create an environment in which the use of intuition will grow, integrating it into the mainstream of the organization"s strategic-planning process.

单选题The Untied States and Canada are lands of______ except tor the Indians, who are the only true natives.(2003年上海交通大学考博试题)

单选题 He ______ the check and deposited it in his account.