好题,简单的数学推理题,不妥,应叫趣味推理题: 2.20+.20=3.12 OR 3.11 (2012) ?加法唯一性?

来源: jinjing 于 2011-03-09 08:47:51 [旧帖] [给我悄悄话] 本文已被阅读：次

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