[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

考试用绳(体测/跳绳考级)应选竹节绳或轴承PVC绳,轴承结构减少缠绕、转速稳定,1分钟计数更连贯;棉绳因绳体重、易打结不适合速度考核

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