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.

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有客人钻进包厢了，几只反应迅速的“老虎”立刻拎着化妆包在包厢外排起了队，等待被客人选中，落选的小姐只能回到座位上等着下一次机会。

优点：输出范围在 (0,1)，可以表示概率。业内人士推荐服务器推荐作为进阶阅读

Seth Meyer

We don’t have a single verb to express smelling something nice. Welsh and Croatian, by contrast, are never caught short when something fragrant gets right up your nose，更多细节参见搜狗输入法下载

В России ответили на имитирующие высадку на Украине учения НАТО18:04

儿童手表“小天才圈”调查

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