中国作为人口大国，得过几个诺贝尔奖? 几千年文明到现在拿的出手的还是四大发明，中国欠世界太多!

来源: 鲁美丽于 2018-06-16 14:16:04 [旧帖] [给我悄悄话] 本文已被阅读：次

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