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In Anglo-America there are three major ethnic groups. The first is the original Indian population, who today represents a minority group. The second is the descendants of European colonists who emigrated to the two countries before the end of the nineteenth century. These majority populations normally speak English, are highly-educated, and most of them are culturally homogeneous (同类的) in broad cultural values. A third group is made up of ethnic minorities, from Asia, Latin America, Africa, or parts of Europe who have either linguistic, religious, racial, or other cultural attributes that distinguish them from the majority population.The United States has a varied ethnic minority pattern, without the dominance of one minority group in a specific geographical area. The largest ethnic group in America is the blacks, totaling an estimated 26 million in 1980, or 12 percent of the population. Unlike the French, the black population of the United States is not culturally and geographically isolated in one area. Slightly more than half of American blacks live in the South, and 49 percent reside in the East and the West. The black American speaks English, has a tendency to share, the characteristics of competition, materialism, and individualism with other United States citizens, and has no distinctive religion.The Spanish-speaking minority in America is reluctant to adopt the values of the dominant cultural group. There is increasingly a demand for bilingual (双语的) education to allow Spanishspeaking children to use English in their educational programs. The existence of a large and growing minority population such as the Spanish-speaking Americans, who are increasingly committed to their own food and newspapers in Latin, is one of the issues facing Anglo-America in the future. The old concept of a melting pot is being replaced by the concept of a plural society. As far as the writing technique is concerned, the author mainly resorts to().
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Predictions of many robots in industry have yet come true. For ten years or more, manufacturers of big robots have explained how their machines can make industry more competitive and productive. The maker for (21) robots is oversupplied now, and the driving force of the robotics(机器人学) revolution is (22) to be with makers of machines that handle a few kilos at most."Heavy-robot manufacturers are in some difficulty (23) finding customer. They are offering big (24) just to get in the door. There has been a (23) growth everywhere in the numbers of robots, so we admit we are either deceiving (26) or that the market is slowly growing. "said John Reekie, chairman of Colen Robotics. "The following things must happen (27) the robotics revolution to occur. We must achieve widespread robot literacy, (28) there has been a computer (29) program, there must be a robot prices. (30) , some kind of artificial intelligence needs to be (31) ."Colen makes educational robots and machine tools. It is small (32) with companies like ASEA or Fujitsu Fanuc. But Colen with others and departments in universities such as Surrey, Manchester, and Durham possess an advantage (33) . the giants. The big companies sell very expensive (34) to businesses with expert knowledge in automation. The (35) companies make robots for teaching people, and now they have realized that there is a need for small, (36) robots that they can meet.The little companies either bring their educational machines (37) an industrial standard or design from the start. One technique that they all adopt is to choose (38) components where possible. The major cost of making (39) their models is the electronics, which will fall in price. There is (40) scope for reductions in mechanical costs. The sue of standard parts, which are easily replaced, should give these robots a mechanical life of something in the order of five years. 37().
Predictions of many robots in industry have yet come true. For ten years or more, manufacturers of big robots have explained how their machines can make industry more competitive and productive. The maker for (21) robots is oversupplied now, and the driving force of the robotics(机器人学) revolution is (22) to be with makers of machines that handle a few kilos at most."Heavy-robot manufacturers are in some difficulty (23) finding customer. They are offering big (24) just to get in the door. There has been a (23) growth everywhere in the numbers of robots, so we admit we are either deceiving (26) or that the market is slowly growing. "said John Reekie, chairman of Colen Robotics. "The following things must happen (27) the robotics revolution to occur. We must achieve widespread robot literacy, (28) there has been a computer (29) program, there must be a robot prices. (30) , some kind of artificial intelligence needs to be (31) ."Colen makes educational robots and machine tools. It is small (32) with companies like ASEA or Fujitsu Fanuc. But Colen with others and departments in universities such as Surrey, Manchester, and Durham possess an advantage (33) . the giants. The big companies sell very expensive (34) to businesses with expert knowledge in automation. The (35) companies make robots for teaching people, and now they have realized that there is a need for small, (36) robots that they can meet.The little companies either bring their educational machines (37) an industrial standard or design from the start. One technique that they all adopt is to choose (38) components where possible. The major cost of making (39) their models is the electronics, which will fall in price. There is (40) scope for reductions in mechanical costs. The sue of standard parts, which are easily replaced, should give these robots a mechanical life of something in the order of five years. 30().
Predictions of many robots in industry have yet come true. For ten years or more, manufacturers of big robots have explained how their machines can make industry more competitive and productive. The maker for (21) robots is oversupplied now, and the driving force of the robotics(机器人学) revolution is (22) to be with makers of machines that handle a few kilos at most."Heavy-robot manufacturers are in some difficulty (23) finding customer. They are offering big (24) just to get in the door. There has been a (23) growth everywhere in the numbers of robots, so we admit we are either deceiving (26) or that the market is slowly growing. "said John Reekie, chairman of Colen Robotics. "The following things must happen (27) the robotics revolution to occur. We must achieve widespread robot literacy, (28) there has been a computer (29) program, there must be a robot prices. (30) , some kind of artificial intelligence needs to be (31) ."Colen makes educational robots and machine tools. It is small (32) with companies like ASEA or Fujitsu Fanuc. But Colen with others and departments in universities such as Surrey, Manchester, and Durham possess an advantage (33) . the giants. The big companies sell very expensive (34) to businesses with expert knowledge in automation. The (35) companies make robots for teaching people, and now they have realized that there is a need for small, (36) robots that they can meet.The little companies either bring their educational machines (37) an industrial standard or design from the start. One technique that they all adopt is to choose (38) components where possible. The major cost of making (39) their models is the electronics, which will fall in price. There is (40) scope for reductions in mechanical costs. The sue of standard parts, which are easily replaced, should give these robots a mechanical life of something in the order of five years. 23().
One of the most famous bridges in the world is the Golden Gate Bridge that spans San Francisco Bay. Because it was built in 1937, it has become one of the first sights people see if they are coming to San Francisco by ship. The main part of the Golden Gate Bridge is a suspension span. It hangs from steel cables that are supported by two huge towers, one at each end of the bridge. The suspension span was the longest in the world when it was finished in 1937. It measures 4,200 feet between the towers. The floor of thebridge is wide enough for six lanes of cars, three in each direction. There are sidewalks, too, but not many people use them. It costs a lot of time to go on foot from one end of the bridge to the other.The years since 1950 have been called the era of the giant bridge. Most of them have been built in the United States. The Mackinac Bridge in upper Michigan was finished in 1958. It is a suspension bridge, with foundations resting on rock 200 feet below the surface of the water. With a span of 3,800 feet, it was the second in length to the Golden Gate Bridge.In 1964 the longest and heaviest suspension bridge was completed in New York City. Known as the Verrazano--Narrows Bridge, it carries traffic between Staten Island and Brooklyn, parts of the city of New York. Before it was built, commuters to the city had to travel by ferry. Now millions of cars pass over the bridge every year. When a lower deck is added, 48 million cars will be able to cross the bridge in a single year. What is the main part of the Golden Gate Bridge
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