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No Plagiarism!cv0SEL3e72nuZlZhUMgGposted on PENANA 1. 把5L水桶裝滿倒進3L中,剩2L。432Please respect copyright.PENANAIzO5dCbZ25
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2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。432Please respect copyright.PENANANr5jE70cpk
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3. 再從5L水桶倒出1L到3L水桶,就OK了。432Please respect copyright.PENANA53QKuSnfBn
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