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最佳答案：I like chemistry, because chemistry class , there are many interesting experimen
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最佳答案：AbstractFor each environment is not strange people,and even the world as a whole
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最佳答案：Way of thinking is that people within the brain activity program,its people's wo
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最佳答案：We live in a world of endless circles,that is - the universe.In fact,we can desc
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最佳答案：The diamond in the world and now and already know one of the most concentrated w