题目内容
在一个小办公室套间中，六个办公桌一个接一个地安排在一条直线上，有六个人P、Q、R、S、T和U被安排坐这六个办公桌，每人一个办公桌。根据下列条件： (1)P与T的办公桌一定相邻。 (2)Q与S的办公桌一定不能相邻。 (3) R一定被安排在办公桌1或6。 (4) S一定被安排在比U数字低的办公桌。 在Argonia，司机为汽车事故保险而支付的平均费用是被管制的，从而使保险公司能取得合理的利润。在这种管制之下，个别的司机支付的费用从来不是依赖于该司机每年行驶的距离。所以，驾驶距离少于平均水平的Argonia人部分补贴了那些驾驶距离多于平均水平的人支付的保险费用。 上面的结论可以被恰当地得到，如果在Argonia，这样的情况也是真实的：
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