单词：poeograph
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Last term I took part in a geography research study group. Our topic was environment pollution and protection. We took a variety of pictures, showing the present pollution conditions of our city. To our surprise, there are still a lot of people doing
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It started with a simple experiment: take some graphite - the black stuff in the middle of a pencil - and put a piece of tape over it. When the scientists at the University of Manchester did that, they found that they could develop a material that co
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Graphene Called Amazing, Versatile Material of the Future 前景光明的多功能材料石墨烯 In 2004, two scientists at the University of Manchester in England isolated a carbon-based material called graphene, with some unusual properties. Andre
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