How exactly horses produce that distinctive sound – also called a neigh – has long eluded scientists.
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近期 SaaS（软件即服务）类股票大幅下跌，主要源于 AI 带来的竞争压力。
New analysis of Apollo Moon samples finally settles debate: « For decades, scientists have argued whether the Moon had a strong or weak magnetic field during its early history (3.5 - 4 billion years ago). Now a new analysis shows that both sides of the debate are effectively correct. »
· 刘洋 · 来源：tutorial资讯