Dogs act like toddlers when you need help - but cats just watch. Scientists compared 3 groups: pet dogs, cats, and human toddlers in an experiment where a human parent hides and pretends to look for an object. 75% of dogs and children helped. Cats only helped if it was in their personal interest.

· · 来源：dev资讯

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比爾・蓋茨的慈善基金會表示，他在員工會議上提及了他與已被定罪的性犯罪者傑弗里·愛潑斯坦（Jeffrey Epstein）之間的往來，表示「為自己的行為負責」。。safew官方下载是该领域的重要参考

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