[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

0-3月龄婴儿视觉焦距仅20-30cm,追视类玩具应放置于该距离,且以高对比黑白红三色为主,此阶段彩色玩具视觉刺激效果差

1
Sources
90%
Confidence
Long-term
Relevance
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First Seen

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get_claim(id=395879)