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单选题Car Thieves Could Be Stepped Remotely(远程) Speeding off(超速行驶)in a stolen car, the thief thinks he has got a great catch. But he is in a nasty surprise. The car is fitted with a remote immobilizer(使车辆不能调动的装置), and a radio signal from a control center miles away will ensure that once the thief switches the engine 1 , he will not be able to start it again. For now, such devices 2 only available for fleets of trucks and specialist vehicles used on construction sites. But remote immobilization technology could soon start to trickle(慢慢地移动) down to ordinary cars, and 3 be available to ordinary cars in the UK 4 two months. The idea goes like this. A control box fitted to the car incorporates 5 miniature cellphone(移动电话,手机), a microprocessor and memory, and a GPS satellite positioning receiver. 6 the car is stolen, a coded cellphone signal will tell the unit to block the vehicle"s engine management system and prevent the engine 7 restarted. There are even plans for immobilizers 8 shut down vehicles on the move, though there are fears over the safety implications of such a system. In the UK, an array of technical fixes is already making 9 harder for car thieves. "The pattern of vehicles crime has changed," says Martyn Randall of Thatcham, a security research organization based in Berkshire that is funded in part 10 the motor insurance industry. He says it would only take him a few minutes to 11 a novice(新手,初学者) how to steal a car using a bare minimum of tools. But only if the car is more than 10 years old. Modern cars are a far tougher(艰苦的)proposition(任务), as their engine management computer will not 12 them to start unless they receive a unique ID code beamed out by the ignition(点火)key. In the UK, technologies like this 13 achieve a 31 percent drop in vehicle-related crime since 1997. But determined criminals are still managing to find other ways to steal cars. Often by getting hold of the owner"s keys in a burglary(盗窃). In 2000,12 percent of vehicles stolen in the UK were taken using the owner"s keys double the previous year"s figure. Remote-controlled immobilization system would 14 a major new obstacle in the criminal"s way by making such thefts pointless. A group that includes Thatcham, the police, insurance companies and security technology firms have developed standards for a system that could go on the market sooner than the 15 expects.
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单选题Careful consideration should be given to issues of health and safety.
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单选题Venice is celebrated for its beautiful buildings.A. outstandingB. praisedC. notedD. regarded
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单选题All the students were excited at the {{U}}idea{{/U}} of a weekend sports competition.
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单选题Nicotine gum is used to help a smoker
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单选题Cameras take the sharpest pictures when they are held still.A. clearestB. fastestC. most interestingD. most beautiful
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单选题{{B}}第三篇{{/B}} {{B}} Faster Effective Reading{{/B}} A higher reading rate, with no loss of comprehension, will help you in other subjects as well as in English, and the general principles apply to any language. Naturally, you will not read every book at the same speed. You would expect to read a newspaper, for example, much more rapidly than a physics or economics textbook-but you can raise your average reading speed over the whole range of materials you wish to cover so that the percentage (百分比) gained will be the same whatever kind of reading you are concerned with. The reading passages which follow are all of an average level of difficulty for your stage of instruction. They are all about five hundred words long. They are about topics of general interest which do not require a great deal of specialized knowledge. Thus they fall between the kind of reading you might find in your textbooks and the much less demanding kind you will find in a newspaper or light novel. If you read this kind of English, with understanding at, say, four hundred words per minute, you might drop to two hundred or two hundred and fifty. Perhaps you would like to know what reading speeds are common among native English speaking university students and how those speeds can be improved. Tests in Minnesota, U.S.A, for example, have shown that students without special training can read English of average difficulty, for example, Tolstoy's War and Peace in translation, at speeds of between 240 and 250 words per minute with about seventy percent comprehension. Students in Minnesota claim that after twelve half-hour lessons, one a week, the reading speed can be increased, with no loss of comprehension, to around five hundred words per minute.
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单选题The Mona Lisa, ______ in Italy, is now in the Louvre, a museum in Paris.A. who paintedB. who was paintedC. which paintedD. which was painted
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单选题We had an exceptionally warm last year, but it was extremely cold this winter.A. slightB. mildC. lightD. tender
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单选题The two sisters have entirely different{{U}} temperament{{/U}}.
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单选题 Germs (细菌) on Banknotes People in different countries use different types of money: yuan in China, pesos in Mexico, pounds in the United Kingdom, dollars in the United States, Australia and New Zealand. They may use different currencies, but these countries, and probably all countries, still have one thing in {{U}} {{U}} 1 {{/U}} {{/U}}: germs on the banknotes. Scientists have been studying the germs on money for well over 100 years. At the turn of the 20th {{U}} {{U}} 2 {{/U}} {{/U}}, some researchers began to suspect that germs living on money could spread disease. Most studies of germy money have looked at the germs on the currency {{U}} {{U}} 3 {{/U}} {{/U}}one country. In a new study, Frank Vriesekoop and other researchers compared the germ populations found on bills of different {{U}} {{U}} 4 {{/U}} {{/U}}. Vriesekoop is a microbiologist at the University of Ballarat in Australia. He led the study, which compared the germ populations found on money {{U}} {{U}} 5 {{/U}} {{/U}}from 10 nations. The scientists studied 1,280 banknotes in total; all came from places where people buy food, like supermarkets, street vendors and cafes, {{U}} {{U}} 6 {{/U}} {{/U}}those businesses often rely on cash. Overall, the Australian dollars hosted the fewest live bacteria—no more than 10 per square centimeter. Chinese yuan had the {{U}} {{U}} 7 {{/U}} {{/U}}—about 100 per square centimeter. Most of the germs on money probably would not cause harm. What we call "paper money" {{U}} {{U}} 8 {{/U}} {{/U}}isn't made from paper. The U.S. dollar, for example, is printed on fabric that is mostly cotton. Different countries may use different {{U}} {{U}} 9 {{/U}} {{/U}}to print their money. Some of the currencies studied by Vriesekoop and his team, such as the American dollar, were made from cotton. Others were made from polymers. The three {{U}} {{U}} 10 {{/U}} {{/U}}with the lowest numbers of bacteria were all printed on polymers. They included the Australian dollar, the New Zealand dollar and some Mexican pesos. The {{U}} {{U}} 11 {{/U}} {{/U}}currencies were printed on fabric made mostly of cotton. Fewer germs lived on the polymer notes. This {{U}} {{U}} 12 {{/U}} {{/U}}suggests that germs have a harder time staying alive on polymer surfaces. Scientists need to do more studies to understand {{U}} {{U}} 13 {{/U}} {{/U}}germs live on money—and whether or not we need to be concerned. Vriesekoop is now starting a study that will {{U}} {{U}} 14 {{/U}} {{/U}}the amounts of time bacteria can stay alive on different types of bills. Whatever Vriesekoop finds, the fact remains: Paper money {{U}} {{U}} 15 {{/U}} {{/U}}germs. We should wash our hands after touching it; After all, you never know where your money's been. Or what's living on it.
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单选题Rodman met with Tony to try and settle the dispute over his contract.
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单选题Companion of My Life Most people have had a dog or wanted one as their companion at some time in their lives. If you are thinking of buying a dog, however, you should first decide what sort of companion you need and whether the dog is likely to be happy in the surroundings you can provide. Specialists" advice is useful to help you choose the most suitable kind of dog. But in part the decision depends on common sense. Different dogs were originally developed to perform specific tasks. So, if you want a dog to protect you or your house, for example, you should choose the one that has the right size and characteristics. You must also be ready to devote a great deal of time to training the dog when it is young and give it the exercise it needs throughout its life, unless you live in the countryside and can let it run freely. Dogs are demanding pets. Cats love the house and so are satisfactory with their place where there is secure, but a dog is loyal to its master and consequently wants him to show proof of his affection. The best time to buy a baby dog is when it is between 6 and 8 weeks old so that it can transfer its love for its mother to its master. If baby dogs have not established a relationship with the human being until they are over three months old, their strong relationship will always be with dogs. They are likely to be too shy when they are brought out into the world to become good pets.
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单选题{{B}}第三篇{{/B}} {{B}} Silent and Deadly{{/B}} Transient ischemic attacks (TIAs), or ministrokes, result from temporary interruptions of blood flow to the brain. Unlike full strokes, they present symptoms lasting anywhere from a few seconds to 24 hours. Rarely do they cause permanent neurological damage, but they are often precursors of a major stroke. "Our message is quite clear," says Dr. Robert Adams, professor of neurology at-the Medical College of Georgia in August. "TIAs, while less severe than strokes in the short term, are quite dangerous and need a quick diagnosis and treatment as well as appropriate follow-up to prevent future injury." Unfortunately, ministrokes are greatly underdiagnosed. A study conducted for the National Stroke Association indicates that 2.5% of all adults aged 18 or older (about 4.9 million people in the U. S.) have experienced a confirmed TIA4. An additional 1.2 million Americans over the age of 45, the study showed, have most likely suffered a ministroke without realizing it. These findings suggest that if the public knew how to spot the symptoms of stroke, especially ministrokes, and sought prompt medical treatment, thousands of lives could be saved and major disability could be avoided. The problem is that the symptoms of a ministroke are often subtle and passing. Nonetheless, there are signs you can look out for: ▲ Numbness or weakness in the face, arm or leg, especially on one side of the body. ▲ Trouble seeing in one or both eyes. ▲ Confusion and difficulty speaking or understanding. ▲ Difficulty walking, dizziness or loss of coordination. ▲ Severe headache with no known cause. Along with these symptoms, researchers have identified some key indicators that increase your chances of having a full-blown stroke after a TIA: if you're over 60, have experienced symptoms lasting longer than 10 minutes, feel weak and have a history of diabetes. As with many diseases, you can help yourself by changing your lifestyle. The first things you should do are quit smoking, limit your intake of alcohol to no more than a drink or two a day and increase your physical activity. Even those who suffer from high blood pressure or diabetes can improve their odds--and minimize complications if they do have a Stroke--by keeping their illness under control. If you experience any of the symptoms, your first call should be to your doctor. It could be the call that saves your life.
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单选题Many fine cooks insist on ingredients of the highest quality. A. demand B. rely on C. prepare for D. create
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单选题I think their plan will work, but they themselves are very suspicious about it.A. certainB. worriedC. confidentD. doubtful
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单选题It is obvious that he will win the game at last.A. likelyB. possiblyC. clearlyD. finally
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单选题"I think you"ve made a mistake," he said mildly .
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单选题I reserve the right to disagree. A. deserve B. keep C. perceive D. notice
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单选题When once you have caught the disease, you are immune from it for the rest of your life.A. freeB. busyC. calmD. impatient
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