[KongchangAI]
Unverified90% confidenceFactTime unknown

认证有效期与复训要求:AHA的BLS/HeartSaver证书有效期为2年,红十字会急救证书通常为2年,到期需重新复训;选课时确认证书是否可全球或全国通用,避免选择仅机构内部认可的'结业证明'

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