单选题Ideas ______ from one's own experience are sometimes more valuable than those from books. A.derived B.deprived C.retreated D.restored

单选题Although there are several variations on the exact format that worksheets can take, they are all similar in their ______ aspects.

单选题Mr. Carson thought he Uwas entitled to/U more assistance from the government.

单选题"Do you mind______?" "Go ahead. I don't mind. "

单选题______ for many years, the novelist suddenly became famous.

单选题When he woke up, he realized that the things he had in his dream could not______ have happened.

单选题Some corpses were so badly dismembered that they couldn't be identified as men or women.

单选题 Potentially offering a powerful new tool against terrorism, researchers have found a novel way to detect deception: in the liar's blushing face. The technique, described in the journal, Nature, uses a thermal camera to detect sudden, involuntary shifts of blood flow in the face. The system performed as accurately as a traditional polygraph, the scientists report. Yet the camera can provide answers instantly, and does not require a highly trained specialist to operate it or interpret its results. This makes it far better suited than the polygraph for a new, high-tech approach to security that is already raising the hackles of civil libertarians: the screening of large numbers of citizens, at airports and other sensitive are-as, who have done nothing wrong. "The next decade is going to see the development of truly accurate lie detectors", said Stephen M. Kosslyn, an expert on detecting lies and a professor of psychology at Harvard University. The prototype, built by researchers at the Mayo Clinic and Honeywell Laboratories in Minnesota, is at least 2 years from being ready for general use. But other scientists said the discovery of previously unknown physiological changes in the face was itself an important step forward. "This is potentially very important work, which may open a new window on the mind," said Kosslyn. Pushed by technological advances, and with fresh interest since Sept. 11, the discovery is part of a boom in the scientific study of deceit and its detection. Although the lie remains a mysterious phenomenon, researchers in recent years have found a number of new approaches that might replace the polygraph, from brain scans, to subtle changes in eye movement, to sparks of electrical activity that signal a person has seen a victim or a crime scene before. The new finding, though, is remarkable for its simplicity. When a person tells a lie,the team found, there is a sudden rush of blood to the area around the eyes, according to the Mayo Clinic's Dr. James A. Levine. Although the change is not ordinarily visible the blood warms the skin, causing bands of color to appear through a camera sensitive to heat. The team devised a computer program that can identify the telltale changes based on the camera images. In testing at the U.S. Department of Defense Polygraph Institute,which trains federal polygraph examiners, the device performed better than polygraphs,with 85 percent accuracy compared with 70 percent for the polygraph.

单选题Some of the jobs that the illegal immigrants do as mentioned in the article include the following ______.

单选题According to the law of that country, the Parliament will have to be______ before the General Election.(2002年中国社会科学院考博试题)

单选题The war was the most peaceful period of my life. The window of my bedroom faced southeast. My mother had curtained it, but that had small effect. I always woke up with the first light and, with all the responsibilities of the previous day melted, felt myself rather like the sun, ready to shine and feel joy. Life never seemed so simple and dear and full of possibilities as then. I stuck my feet out under the sheets—I called them Mrs. Left and Mrs. Right—and invented dramatic situations for them in which they discussed the problems of the day. At least Mrs. Right did; she easily showed her feelings, but I didn't have the same control of Mrs. Left, so she mostly contented herself with nodding agreement. They discussed what Mother and I should do during the day, what Santa Claus should give a fellow for Christmas, and what steps should be taken to brighten the home. There was that little matter of the baby, for instance. Mother and I could never agree about that. Ours was the only house in the neighborhood without a new baby, and Mother said we couldn't afford one till Father came back from the war because it cost seventeen and six. That showed how foolish she was. The Geneys up the road had a baby, and everyone knew they couldn't afford seventeen and six. It was probably a cheap baby, and Mother wanted something really good, but I felt she was too hard to please. The Geneys' baby would have done us fine. Having settled my plans for the day, I got up, put a chair under my window, and lifted the frame high enough to stick out my head. The window overlooked the front gardens of the homes behind ours, and beyond these it looked over a deep valley to the tall, red-brick house up the opposite hillside, which were all still shadow, while those on our side of the valley were all lit up, though with long storage shadows that made them seam unfamiliar, stiff and painted. After that I went into Mother's room and climbed into the big bed. She woke and I began to tell her of my schemes. By this time, though I never seem to have noticed it, I was freezing in my nightshirt, but I warmed up as I tallied until the last frost melted. I fell asleep beside her and woke again only when I heard her below in the kitchen, making breakfast.

单选题In North Dakota, which had barely an inch of rain in four months, there was no grass for cattle. Farmers tramped their dusty fields, watching their dwarfed stand of grain shrivel and ______.

单选题To sleep. Perchance to file? Findings published online this week by the Proceedings of the National Academy of Sciences further support the theory that the brain organizes and stows memories formed during the day while the rest of the body is catching zzz's. Gyorgy Buzsaki of Rutgers University and his colleagues analyzed the brain waves of sleeping rats and mice. Specifically, they examined the electrical activity emanating from the somatosensory neocortex (an area that processes sensory information) and the hippocampus, which is a center for learning and memory. The scientists found that oscillation in brain waves from the two regions appear to be intertwined. So-called sleep spindles (bursts of activity from the neocortex) were followed tens of milliseconds later by beats in the hippocampus known as ripples. The team posits that this interplay between the two brain regions is a key step in memory consolidation. A second study, also published online this week by the Proceedings of the National Academy of Sciences, links age-associated memory decline to high glucose levels. Previous research had shown that individuals with diabetes suffer from increased memory problems. In the new work, Antonio Convit of New York University School of Medicine and his collaborators studied 30 people whose average age was 69 to investigate whether sugar levels, which tend to increase with age, affect memory in healthy people as well. The scientists administered recall tests, brain scans and glucose tolerance tests, which measure how quickly sugar is absorbed from the blood by the body's tissues. Subjects with the poorest memory recollection, the team discovered, also displayed the poorest glucose tolerance. In addition, their brain scans showed more hippocampus shrinkage than those of subjects better able to absorb blood sugar. "Our study suggests that this impairment may contribute to the memory deficits that occur as people age." Convit says. "And it raises the intriguing possibility that improving glucose tolerance could reverse some age-associated problems in cognition." Exercise End weight control can help keep glucose levels in check, so there may be one more reason to go to the gym.

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单选题She would go home,______ usual, for Christmas.

单选题The ______ friend was exposed in the end to be a hidden rival who had been plotting against the company's marketing in Hong Kong.

单选题As the speed of change brings design ______ fashion, then decisions about taste will have to be made more and more regularly. A. near to B. nearer to C. next to D. close to