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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                常規答案一:59 先買30瓶,30個瓶子換15瓶,15瓶可以換7瓶還剩一個空瓶,7瓶可以換3瓶,加剛剛一個空瓶等于換4瓶,4瓶可以換2瓶,2瓶可以換1瓶。30+15+7+4+2+1=59; 邏輯答案二:60 如上所述,最后一瓶喝完仍剩余一個瓶空瓶,可以先預借一個瓶子,然后再用兩個空瓶換一瓶新的還回去。
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