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:tutorial资讯

在黔北,仡佬族人家的餐桌上,灰豆腐几乎四季不离。杀了年猪、熏好腊肉,积下的柏树灰是舍不得浪费的,细细筛了,收起装好,那是做灰豆腐最好的材料。从豆子到豆腐,再到灰豆腐,慢工细活,没个两三天完不成。但黔北人就是喜欢这样慢慢地过活,细水长流才是生活的真谛。

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