Unverified90% confidenceDecision RuleTime unknown
2-3岁幼儿选择碎片数量≤12片、单片尺寸≥8cm的大块拼图,此阶段抓握与视觉追踪能力有限,碎片过小易误吞且难以拼合造成挫败
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90%
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Long-term
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