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以二分之一和五分之一算过了,然后换小数点而验算,对了。口诀记下了,当武功秘籍背着呢。先进教师我选你

sweeet (SuRRenDeR <>&l)
(#152821@65)
2004-3-30 -04:00
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Back To Topic: 昨晚临睡前突然琢磨分数的加减乘除,居然居然。。。给忘了怎么算了,最后还是除成小数点算得。真是苦恼。。俺现在连小学也毕不了业拉。

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