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by Gigiz (high school)
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7 months
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by Gigiz (high school)
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7 months
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by pengzhaowu (Xi'an Jiaotong University)
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by sushisheep (Stanford)
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by yjrrr (Harbin Institute of Technology)
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10 months
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by improvewriting (Beijing telecommunication university)
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by HyperionFrog (South China University of Technology)
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10 months
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11 months
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by Harris (Wuhan university)
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by xuenailao (武汉大学)
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by Alvina (China Agriculture University)
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