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枫下拾英 / 心情随笔 / 算一道题,3分钟找不到答案问你的孩子A,B,C 各出10元由A去买一样东西,一天后,商店退回5元,A 藏下2元后,当众各分了一元,则每人花9元,现在来看 9+9+9+2=29 为什么少了一元?
-snowday(darksky);
2001-10-24
{131}
(#235967@0)
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9+9+7+5=30
-checkme(checkme);
2001-10-24
(#235969@0)