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最佳答案：We should understand that we can't see the essences of things only by senses.Als
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最佳答案：This article take the turnip as a raw material,conducts the research and the opt
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最佳答案：With the improvement of people's living standard, consumers not only focus on nu
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最佳答案：CautionThis apparatus doesnt't apply to the people who has physical,sensory or m
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最佳答案："Touch" phonethis phone is a phone designed specifically for the blind in using