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Curt Dunnam bought a Chevrolet Blazer with one of the most popular new features in high-end cars: the OnStar personal security system. The heavily advertised communications and tracking feature is used nationwide by more than two million drivers, who simply push a button to connect, via a built-in cellphone, to a member of the OnStar staff. A Global Positioning System, or G. P. S. , helps the employee give verbal directions to the driver or locate the car after an accident. The company can even send a signal to unlock car doors for locked-out owners, or honk the horn to help people find their cars in an endless plain of parking spaces. The biggest selling point for the system is its use in thwarting car thieves. Once an owner reports to the police that a car has been stolen, the company can track it to help intercept the thieves, a service it performs about 400 times each month. But for Mr. Dunnam, the more he learned about his car’s security features, the less secure he felt. He has enough technical knowledge to worry that someone else-law enforcement officers, or hackers-could listen in on his phone calls, or gain control over his automotive systems without his knowledge or consent. "While I don’t believe G. M. intentionally designed this system to facilitate such activities, they sure have made it easy," he said. Mr. Dunnam said he had become even more concerned because of a federal appeals court case involving a criminal investigation, in which federal authorities had demanded that a company attach a wiretap to tracking services like those installed in his car. The suit did not reveal which company was involved. A three-judge panel in San Francisco rejected the request, but not on privacy grounds; the panel said the wiretap would interfere with the operation of the safety services. OnStar has said that its equipment was not involved in that case. An OnStar spokeswoman, Geri Lama, suggested that Mr. Dunnam’s worries were overblown. The signals that the company sends to unlock car doors or track location-based information can be triggered only with a secure exchange of specific identifying data, which ought to deter all but the most determined hackers, she said. The most important feature of OnStar advertised by the company is that it can ______.

A. help people find their ears in the big parking lot
B. give verbal direction to drivers lost in unfamiliar areas
C. make it difficult for thieves to get away with stolen ears
D. open car doors for owners unahle to find their car keys

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According to new research of Prof. Randolf Menzel from the Free University in Berlin, the popular image of bees as the ultimate hard workers was inaccurate. "Although we see bees buzzing around tirelessly in spring and summer, the common belief in a bee’s busy nature is based on a misconception," he said. People only really see bees when they’re out flying, or they look at a colony of bees and see thousands of them buzzing around. They don’t get to pick them out as individuals. The professor, who this month won a German Zoological Society award for his work on bees, added that bees compensated for their apparent laziness with high intelligence, advanced memory skills and an ability to learn quickly. The suggestion that bees were not pulling their weight met with skepticism from British beekeepers. Glyn Davies, the President of the British Beekeepers Association, said that bees were not lazy but efficient. "At any particular stage in its life, a bee has a specific job to do. If they are unable to do that job, they conserve their energy by doing nothing. Each bee has a unit of life energy and the faster it works, the faster it dies. They are being very wise and perhaps humans should try to follow their example instead of running about like headless chickens. " The idea of the busy bee is several thousand years old. One current author who has nothing but admiration for the bee is Paul Theroux, the novelist and part-time beekeeper. "I have never seen a bee sleeping. My bees never stop working. " he said, Mr. Theroux, who keeps 85 hives each containing 30000 bees in Hawaii, added that Prof. Menzel’s research could have been affected by his national origins. "Perhaps in comparison to the German rate of work, the bee does look lazy," he said. Few people think that the busy bee idea will go away, despite the efforts of Prof. Menzel. It performs too many useful functions in our culture. In fact, the worship of hees seems to be undergoing a renaissance. IBM recently ran a series of ads drawing on the " waggle dance" of bees, telling businessmen to "make your business waggle. \ According to Glyn Davies, what should we learn from bees

A. How to work faster.
B. How to live longer.
C. How to cooperate with each other.
D. How to improve work efficiency.

According to new research of Prof. Randolf Menzel from the Free University in Berlin, the popular image of bees as the ultimate hard workers was inaccurate. "Although we see bees buzzing around tirelessly in spring and summer, the common belief in a bee’s busy nature is based on a misconception," he said. People only really see bees when they’re out flying, or they look at a colony of bees and see thousands of them buzzing around. They don’t get to pick them out as individuals. The professor, who this month won a German Zoological Society award for his work on bees, added that bees compensated for their apparent laziness with high intelligence, advanced memory skills and an ability to learn quickly. The suggestion that bees were not pulling their weight met with skepticism from British beekeepers. Glyn Davies, the President of the British Beekeepers Association, said that bees were not lazy but efficient. "At any particular stage in its life, a bee has a specific job to do. If they are unable to do that job, they conserve their energy by doing nothing. Each bee has a unit of life energy and the faster it works, the faster it dies. They are being very wise and perhaps humans should try to follow their example instead of running about like headless chickens. " The idea of the busy bee is several thousand years old. One current author who has nothing but admiration for the bee is Paul Theroux, the novelist and part-time beekeeper. "I have never seen a bee sleeping. My bees never stop working. " he said, Mr. Theroux, who keeps 85 hives each containing 30000 bees in Hawaii, added that Prof. Menzel’s research could have been affected by his national origins. "Perhaps in comparison to the German rate of work, the bee does look lazy," he said. Few people think that the busy bee idea will go away, despite the efforts of Prof. Menzel. It performs too many useful functions in our culture. In fact, the worship of hees seems to be undergoing a renaissance. IBM recently ran a series of ads drawing on the " waggle dance" of bees, telling businessmen to "make your business waggle. \ Prof. Randolf Menzel’s latest research ______.

A. challenges our knowledge of the relations among bees
B. confirms our knowledge of the relations among bees
C. challenges our perception of the nature of bees
D. confirms our perception of the nature of bees

Fear and its companion pain are two of the most useful things that men and animals possess, if they are properly used. If fire did not hurt when it burnt, children would play it until their hands were burnt away. Similarly, if pain existed but fear did not, a child would burn itself again and again, because fear would not warn it to keep away from the fire that had burn it before. A really fearless soldier—and some do exist—is not a good soldier because he is soon killed; and a dead soldier is of no use to his army. Fear and pain are therefore two guards without which men and animals might soon die out. In our first sentence we suggested that fear ought to be properly used. If, for example, you never go out of your house because of the danger of being knocked down and killed in the street by a car, you are letting fear rule you too much. Even in your house you are not absolutely safe: an airplane may crash on your house, or ants may eat away some of the beams in your roof so that the latter falls on you, or you may get cancer! The important thing is not to let fear rule you, but instead to use fear as your servant and guide. Fear will warn you of dangers; then you have to decide what action to take. In many cases, you can take quick and successful action to avoid the danger. For example, you see a car coming straight towards you; fear warns you, you jump out of the way, and all is well. In some cases, however, you decide that there is nothing that you can do to avoid the danger. For example, you cannot prevent an airplane crashing onto your house. In this case, fear has given you its warning; you have examined it and decided on your course, of action, so fear of this particular danger is no longer of any use to you, and you have to try to overcome it. Fear should be used properly because______.

A. an airplane may crash on your house
B. you may get cancer
C. fear can only be used as a servant and guide
D. men are now letting fear rule them too much

Industrial safety does not just happen. Companies 【B1】 low accident rates plan their safety programs, work hard to organize them, and continue working to keep them 【B2】 and active. When the work is well done, a 【B3】 of accident-free operations is established 【B4】 time lost due to injuries is kept at a minimum. Successful safety programs may 【B5】 greatly in the emphasis placed on certain aspects of the program. Some place great emphasis on mechanical guarding. Others stress safe work practices by 【B6】 rules or regulations. 【B7】 others depend oh an emotional appeal to the worker. But, there are certain basic ideas that must be used in every program if maximum results are to be obtained. There can be no question about the value of a safety program; From a financial stand-point alone, safety 【B8】 . The fewer the injury 【B9】 , the better the workman’’s insurance rate. This may mean the difference between operating at 【B10】 or at a loss.

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