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：open资讯

Jonathan Head,South East Asia correspondentand

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第三十三条 国务院财政、税务主管部门应当适时研究和评估增值税优惠政策执行效果，对不再适应国民经济和社会发展需要的优惠政策，及时报请国务院予以调整完善。

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