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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刘强东长期擅长的正是供应链组织与规模化管理。他在粤港澳大湾区布局制造基地与总部，押注的是区域产业协同。一旦核心部件实现本地化配套，制造成本有望下降，行业集中度也可能提升。

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