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标题: 分紅豆和綠豆 [打印本页]

作者: ob    时间: 2004-12-21 09:54
标题: 分紅豆和綠豆

小玲不小心把一袋綠豆混在一起,她請了五個朋友來幫忙。你能替小玲想出一個最好的方法將紅豆和綠豆分開嗎?
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作者: sean9991    时间: 2004-12-25 07:05
标题: could you check your question?

  could you check your question?





作者: ob    时间: 2005-1-1 04:50
标题: The answer is all five kids pick the

less kind of beas of the same color.
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