arawn
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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 · 1755 views
    This topic created in 2980 days ago, the information mentioned may be changed or developed.
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