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最佳答案：As known to everyone that man cann't survive without foods.Unfortunately,the pro
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最佳答案：Nanotechnology,biotechnology and information technology in promoting human devel
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最佳答案：Because the environment is closely related to us,we should do our best to preven
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最佳答案：With the swift and violent development of the computer technology,the treatment
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最佳答案：Architecture has played an important role in human history.This article not only
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最佳答案：Whether we can land on Mars depends entirely on the development of science and t
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最佳答案：As the daily progress of human society and the continuous development of science