Unverified85% confidenceTradeoffTime unknown
别针式徽章佩戴牢固、成本低但存在刺伤风险;磁吸式安全但磁力弱易脱落丢失且价格高;挂绳式最安全但绳长>22cm有缠绕颈部窒息风险,需选带安全断裂扣的挂绳
1
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85%
Confidence
Long-term
Relevance
-
First Seen
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