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单选题 Police in the popular resort city Virginia Beach recently began operating video surveillance cameras with controversial face recognition technology. Virginia Beach and Tampa in Florida two cities in the United States acquired the technology, which cost them $197,000. "Before we switched it on, we went through an extensive public education process with hearings and the involvement of citizen groups and minority groups, who helped write the policies we are using," said deputy police chief Greg Mullen. A citizens' auditing committee has the fight to perform unannounced spot checks on police headquarters to make sure the technology is not being misused. Three of the city's 13 cameras are linked full time to the face recognition system, though the others can be activited as needed. The database of wanted people is updated every day. So far, the system has failed to produce a single arrest, though it has generated a few false alarms. It works by analyzing faces based on a series of measurements, such as the distance from the tip of the nose to the chin or the space between the eyes. Critics say it is highly inaccurate and can be easily fooled. Mullen, who sees the system eventually being linked to the databases of other city, state and federal law enforcement agencies to track criticals and suspected terrorists, said, "The system doesn't look at skin color or your hair or your gender. It takes human prejudices out of the equation. " "This technology has little or no effect on the crime rate but it does have an effect on people's behavior. People feel cowed," said Bruce Steinhardt, who directs the technology. Despite the fact that tests have shown faces recognition only works in around 30% cases, the ACLU is alarmed that the technology may soon spread to airports. The organization also fears it could potentially be used to monitor individual's political activities to harass law-abiding citizens. "This kind of surveillance should be subject to the same procedures as wiretaps. Law enforcement agencies should justify why they need it and it should be tightly limited, otherwise it will soon become a tool of social control," said Mihir Kshisagar of the Electronic Information Privacy Center. Nor does such criticism come exclusively from the political left. Lawyer John Whitehead, founder of the conservative Rutherford Institute, wrote in an editorial that the technology threatened the right of each U.S. citizen to participate in society. "After all, that is exactly what constant surveillance is—the ultimate implied threat of coercion," he wrote.

单选题What critics are really worried about?

单选题Comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. Yet much had happened (21) . As was discussed before, it was not (22) the 19th century that the newspaper became the dominant pre-electronic (23) , following in the wake of the pamphlet and the book and in the (24) of the periodical. It was during the same time that the communications revolution (25) up, beginning with transport, the railway, and leading (26) through the telegraph, the telephone, radio, and motion pictures (27) the 20th-century world of the motor car and the air plane. Not everyone sees that process in (28) . It is important to do so. It is generally recognized, (29) , that the introduction of the computer in the early 20th century, (30) by the invention of the integrated circuit during the 1960s, radically changed the process, (31) its impact on the media was not immediately (32) . As time went by, computers became smaller and more powerful, and they became "personal" too, as well as (33) , with display becoming sharper and storage (34) increasing. They were thought of, like people, (35) generations, with the distance between generations much (36) . It was within the computer age that the term "information society" began to be widely used to describe the (37) within which we now live. The communications revolution has (38) both work and leisure and how we think and feel both about place and time, but there have been (39) view about its economic, political, social and cultural implications. "Benefits" have been weighed (40) "harmful" outcomes. And generalizations have proved difficult.

单选题The story of Snow White is used to

单选题Why do working conditions generally remain bad?

单选题{{B}}Passage 4{{/B}} Some cities grow very large because of two important reasons. First, there may be important natural resources like wood, gas, oil, rivers or harbors near or in the city. Natural resources like wood or oil can be brought to the city and made into products to sell. Other resources, like rivers or harbors help to send the city's products to other places to be sold. Second, the city may be located in a place where roads and rivers come together. This makes these cities good places to buy and sell goods. Houston is a city that grew large because it has two important natural resources. They are oil and a good harbor. The oil can be brought to Houston, made into different products, and shipped out of the harbor to other parts of the world. Chicago is a city that grew very large because of its location at a place where roads, railways, and airways meet. In Chicago, goods can be brought together from all over the country and bought and sold. Then the goods can be loaded into trucks, trains or planes and sent to wherever they are needed. Because of Chicago's location, many people live and work there.

单选题Theodore Dreiser is old-he is very, very old. I do not know how many years he has lived, perhaps forty, perhaps fifty, but he is very old. Something gray and bleak and hurtful, that has been in the world perhaps forever, is personified in him. When Dreiser is gone men shall write books, many of them, and in the books they shall write there will be so many of the qualities Dreiser lacks. The new, the younger men shall have a sense of humor, and everyone knows Dreiser has no sense of humor. More than that, American prose writers shall have grace, lightness of touch, a dream of beauty breaking through the husks of life. Those who follow him shall have many things that Dreiser does not have. That is a part of the wonder and beauty of Theodore Dreiser, the things that others shall have because of him. Long ago, when he was editor of the Delineator, Dreiser went one day, with a woman friend, to visit an orphan asylum. The woman once told me the story of that afternoon in the big, ugly gray building, folding and refolding his pocket-handkerchief and watching the children-all in their little uniforms, trooping in. "The tears ran down his cheeks and he shook his head", the woman said, and that is a real picture of Theodore Dreiser. He is old in spirit and he does not know what to do with life, so he tells about it as he sees it, simply and honestly. The tears run down his cheeks and he folds and refolds the pocket-handkerchief and shakes his head. Heavy, heavy, the feet of Theodore. How easy to pick some of his books to pieces, to laugh at him for so much of his heavy prose. The feet of Theodore are making a path, the heavy brutal feet. They are tramping through the wilderness of lies, making a path. Presently the path will be a street, with great arches overhead and delicately carved spires piercing the sky. Along the street will run children, shouting "Look at me. See what I and my fellows of the new day have done"-forgetting the heavy feet of Dreiser. The follows of the ink-pots, the prose writers in America who follow Dreiser, will have much-to do that has never done. Their road is long but, because of him, those who follow will never have to face the road through the wilderness of Puritan denial, the road that Dreiser faced alone. Heavy, heavy, hangs over they head. Fine, or superfine?

单选题How does Green Peace try to stop people from dumping nuclear waste?

单选题Mugging are most likely to occur ______.

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单选题It can be inferred that before the introduction of television, political parties