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阅读教学方法 Learning to speak is automatic for almost all children brought up in normal circumstances，but learning to read requires elaborate instruction and conscious effort. Remember how hard it once was? Reading this page with t...

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伦敦大雾 Since Roman times，if not before，Britain has been known to people abroad as a land of mists and fogs. Until recently, indeed，visitors to the capital could take home with them tins ofLondon fog For hundreds of years，the m...

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生态农业 With the world population passing the 6 billion mark last October，the debate over our ability to sustain a fast growing population is heating up. Biotechnology advocates in particular are becoming very vocal in their claim th...

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玻璃制造 Between 1953 and 1957，Sir Alastair Pilkington and Kenneth Bickerstaff of the UKs Pilkington Brothers developed the first successful commercial application for forming a continuous ribbon of glass using a molten tin bath on wh...

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天才儿童 The Gifted Development Center has been in operation since June 1979，and we have assessed over 5,000 children in the last 28 years. By concentrating totally on the gifted population，we have acquired a considerable amount of...

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肢体语言 The interpretation of gestures，their origin，and the long history of gesticulation，has attracted the attention of students whose discussions，even if intermittent，have shed interesting light on the problems that emerge...

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营销策略 Arizonas Hispanic market isnt nearly as young，poor or Spanish一language dominant as long assumed，a new survey reports，and marketers say businesses trying to court them should carefully consider their products and the His...

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选择和幸福感 We today choose among more options in more parts of life than has ever been possible before. To an extent, the opportunity to choose enhances our lives. It is only logical to think that if some choice is good，more is be...

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球顶建筑 One of the ways Buckminster Fuller (Bucky) would describe the differences in strength between a rectangle and a triangle would be to apply pressure to both structures. The rectangle would fold up and be unstable but the triangl...

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蚂蚁治虫 In 1476，the farmers of Berne in Switzerland decided，according to this story, there was only one way to rid their fields of the cutworms attacking their crops. they took the pests to court. the worms were tried, found guilty...