[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

3岁以下幼儿应选笔身直径≥1.5cm的粗杆蜡笔或蛋形/块状蜡笔,细杆标准蜡笔(直径约0.8cm)不适合抓握发育未成熟的低龄儿童,且存在误吞窒息风险

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90%
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Long-term
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