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4.0
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According to the UN, it is predicted that the human population could reach ten billion people by the
BBC.地平线.2020.从七十七亿人口开始
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6.0
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The team investigate the use of modern medical technology to scan Egyptian animal mummies from museu
BBC地平线.七千万动物木乃伊.古埃及的暗黑秘密
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