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考古遗迹显示：早期人类部落在40万年前开始四处传火
http://jandan.net/p/109341
http://jandan.net/p/109341
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考古遗迹显示：早期人类部落在40万年前开始四处传火
用火的知识如星火燎原，从一个地区传播到另一个地区
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