求異去同,然後去異求同。 ----排除法。
建議,把謎底隱藏起來,這樣後來的人,會更感興趣去猜。
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明白啥意思了。謝謝!我有時少根筋兒 :):)
-雲破月花弄影-
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04/17/2026 postreply
18:37:40
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