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北京猿人头盖骨发现90周年：丢失的化石在哪里？
source link: https://tech.sina.com.cn/d/c/2019-11-30/doc-iihnzhfz2701258.shtml
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原标题：北京猿人头盖骨发现90周年：丢失的化石在哪里？中新网客户端北京11月30日电（记者上官云）1929年12月，北京周口店遗址出土了北京猿人头盖骨化石，震惊世界学术界。在此之前，虽也有疑似古人类化石发现，但人们无法认定这是人还是其他猿。
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