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一个建筑面积 10 万平米的小区，小王是业主，有一次晚上 10 点回家，结果忘带小区大门的门禁卡，进不去小区。 小区只有一个门，你预测一下，小王需要等多少分钟才可能蹭别人开门进去？

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  •   arawn · Mar 23, 2018 · 1827 views
    This topic created in 3026 days ago, the information mentioned may be changed or developed.
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