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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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12月19日，2024北京接诉即办改革论坛闭幕式在国家会议中心举行，《城市治理现代化北京宣言（2024）》在会上发布。A04-05版摄影/新京报记者 王远征