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请问住高层的同学想好火灾从下蔓延至上的情况下怎么逃生了吗？
source link: https://www.v2ex.com/t/644764
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问与答 - @Whsiqi - 淘宝卖的有绳，从大概一百米拿根绳跳下去。有点太刺激了，更重要的是这玩意的品质很难检验
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