矿工不产生价值,医生治病救人。
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zero sum game
-onlyone1074-
♂
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02/16/2024 postreply
09:02:40
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x
-ZeroSumGame-
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02/16/2024 postreply
09:07:59
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"what can be divided by zero"
-成功的三少爷-
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02/16/2024 postreply
09:28:41