Science：吗啡缓解疼痛的机制 - 生物通



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Einstein’s theory challenged: Black holes could be frozen stars, claims study - Interesting Engineering
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Antechinus: The tiny marsupials where males have sex until they die — then females eat their corpses - Livescience.com
Volcano Were Blamed for the Greatest of Earth’s ‘Big Five’ Mass Extinctions — Scientists Might Have Been Wrong - Inverse