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巧克力包着的糖果有7种味道.每盒2层,每层27个.每次都是按香草,橘子,樱桃香草...共9个重复一次的顺序排列.就是说梅9个里面有2个香草.那么27/9=3,则一层有6个香草.共2层6X2=12,200盒.答案是2400个香草. D

rainrain (雨雨)
(#291407@0)
2001-12-9 -04:00
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