2024年12月23日 星期一 新京报
In June 1962, after gruelling medical tests, Nasa announced its "New Nine". These would be the men to deliver on President Kennedy's pledge to put American boots on the Moon.
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A new study reveals that the adult human brain continues to produce new neurons throughout life, a process that is highly active in older individuals with exceptional memories but severely limited in those with Alzheimer’s disease.
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