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No Plagiarism!RsJG5XPpYwajf771cvzNposted on PENANA 1. 把5L水桶裝滿倒進3L中,剩2L。558Please respect copyright.PENANAdkELKnALhd
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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。558Please respect copyright.PENANAJy8O7CU34V
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3. 再從5L水桶倒出1L到3L水桶,就OK了。558Please respect copyright.PENANAXr4VVhoOw1
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