Unverified90% confidenceDecision RuleTime unknown

0-12个月首选高对比度黑白卡（尺寸≥15cm见方），此阶段婴儿视网膜仅能识别黑白灰及红色轮廓，彩色书本形同浪费

1

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90%

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Long-term

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-

First Seen

Sources

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早教故事书category

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