单选题Did it ever______you that he could be the murderer?(2014年厦门大学考博试题)

单选题Mother has never been to Tibet but that's the only city______.

单选题The evil manners would be ______ root and branch due to the forceful action taken by the local government. A. exterminated B. exemplified C. facilitated D. emitted

单选题I was overjoyed at the news of my hometown ______ so much progress. A．to make B．to have made C．made D．having made

单选题We managed to reach the top of the mountain, and half an hour later we began to______.

单选题M: If you can make up your mind about the color, I can start on the outside of your house early next week.W: Well, right now I think I want white for the window frames and yellow for the walls, but I'll let you know tomorrow.Q: Who is the woman talking to? A. A painter. B. A mechanic. C. A porter. D. A carpenter

单选题{{B}}Passage Five{{/B}} According to Scott Adams, creator of the comic strip (系列漫画) Dilbert, the annual performance review is "one of the most frightening and weakening experiences in every employee's life". Adams' stories and comic figures poke fun at the workplace, but his characterization of people's feelings about the annual performance review has its serious side. Although a recent study of 437 companies indicates that effective annual performance reviews can help raise profits, most employees of those companies hate them. In theory, annual performance reviews are constructive and positive interactions between managers and employees working together to attain maximum performance and strengthen the organization. In reality, they often create division, undermine morale, and spark anger and jealousy. Thus, although the object of the annual performance review is to improve performance, it often' has the opposite result. A programmer at an IT firm was stunned to learn at her annual performance review that she was denied a promotion because she wasn't a "team player." What were the data used to make this judgment? She didn't smile in the company photo. Although this story might sound as if it came straight out of Dilbert, it is a true account of one woman's experience. By following a few ideas and guidelines from industry analysis, this kind of {{U}}ordeal{{/U}} can be avoided: To end the year with a positive and useful performance review, managers and employees must start the year by working together to establish clear goals and expectations. It may be helpful to allow employees to propose a list of people associated with the company who will be in a good position to assess their performance at the end of the year; these people may be co-workers, suppliers, or even customer. Goals should be measurable but flexible, and everyone should sign off on the plan. By checking employees' progress at about nine months, managers can give them a chance to correct mistakes and provide guidance to those who need it before the year is out. When conducting the reviews, managers should highlight strengths and weaknesses during the past year and discuss future responsibilities, avoiding punishment of blame. In short, when employees leave their performance reviews, they should be focusing on what they can do better in the year ahead, not worrying about what went into their files about the past.

单选题The flyover at the crossing on the 6th ring road is now ______construction.

单选题My parents want very much to see you, and as we live in a very large house, we could offer you spacious accommodations.

单选题The author says that he is a naturalist rather than a scientist probably because he thinks he ______. A. comes up with solutions in a most natural way B. lacks some of the qualities required of a scientist C. just reads about other people's observations and discoveries D. has a great deal of trouble doing mental arithmetic

单选题But for your help, I ______ .

单选题There is a controversy even among doctors as to whether this disease is contagious or not.

单选题Born ten days earlier, the boy ______ his late father. A. could have seen B. must have seen C. may have seen D. should have been

单选题Violent criminals with something to hide have more reason than ever to be paranoid about a tap on the shoulder which could send them to jail. Queensland police are working through a backlog of unsolved murders with some dramatic success. Greater cooperation between the public and various law enforcement agencies is playing a role, but new genetic-testing techniques are the real key to providing the vital evidence to mount a prosecution. Evidence left behind at the scene of any murder is guaranteed to outlive the person who left it. A blood, saliva or tissue sample the size of a pin, kept dry and out of sunlight, will last several thousand years. From it, scientific analysis now can tell accurately the sex of the person who left it. When matched against a sample from a crime suspect, it can indicate with million-to-one certainty whether the samples come from the same source. Only twins share identical DNA. So precise is the technology if the biological parents of a suspect agree to provide a sample, forensic scientists can work out the rest for themselves without cooperation from the suspect. Queensland forensic scientists have been using the DNA testing technology since 1992, and last year they were recognized internationally for their competence in positive individual identification. That is part of the reason 20 of Queensland's most puzzling unsolved murders dating to 1952 are being actively investigated. There also have been several recent arrests for unsolved murders. Forensic evidence was instrumental in charges being laid over the bashing death of waitress Tasha Douty on Brampton Island in 1983. Douty's blood-splattered, naked body was found on a nude sunbathing beach at Dinghy Bay on the island. Footprints in the sand indicated that the killer had grappled with the 41-year-old mother who had fled up the beach before being caught and beaten to death. According to Leo Freney, the supervising forensic scientist at the John Tonge Centre at Brisbane's Griffith University, DNA testing has become an invaluable tool for police. Its use is in identifying and rejecting suspects. In fact, he says, it eliminates more people that it convicts. "It is easily as good as fingerprints for the purpose of identification," he says. "In the case of violent crime it is better than fingerprints. You can't innocently explain things like blood and semen at a crime scene where you may be able to innocently explain fingerprints. " In Queensland, a person who has been arrested on suspicion of an offence can be taken before a magistrate and ordered to provide a sample of body fluid by force if necessary.

单选题The Aerospace Bicycle That Fell to Earth A radical new bicycle had its first public showing at the National British Cycling Championships in Shrewsbury last weekend. Based on the gold medal-winning design from the Barcelona Olympics, it is the first commercial mountain bike made of a single piece of carbon fibre. Bicycles for amateurs have up to now been made of steel, aluminum or magnesium tubes welded together into the conventional "A-frame"shape. But last year, the British competitor Chris Boardman set world records while winning titles in the Olympic cycling pursuit events on a custom built, carbon-fibre bicycle with lower weight and wind resistance than standard models. Because carbon fibre is both light and extremely strong, it does not need the A-frame shape, saving further weight. Carbon fibre can also be moulded in a single piece, avoiding the weakness of welds. The new bike, which will cost between $ 2000 and $ 3000 when it reaches the shops next month, has the same advantages as the Olympic model. It weighs about 11 kilograms,a saving of 1.5 kilograms on metal frames. With no crossbar, it has a lower center of gravity, making it easier to use in race conditions. "When you're doing some aggressive riding,you throw the bike about from side to side," explains Eddie Eccleston, director of British Eagle, a British bicycle manufacturer based in Powys, Wales, which is marketing the bikes. "The low centre of gravity gives you better control. " The frames are being made in the U. S. for British Eagle by SP systems in Camarillo,California, which has clients in the aerospace industry, "This is aerospace technology brought into cycling by enthusiasts", says Eccleston. When professionals tested racing versions of the bike before the Tour de France, they were quicker than metal versions by up to 3 seconds per kilometer. The new design has no struts between the saddle and the back wheel; instead, the frame's flexibility can be "tuned" to individual tastes by changing the mixture of Kevlar fibre and carbon fibre in the back wheel strut, allowing up to 5 centimeters of movement. The carbon-fibre design has a lower centre of gravity and smoother back-wheel suspension than conventional bikes.

单选题It was exciting to see such a movie for first time, but we soon became ______ when our TV was flooded with programs of like-kind.