哦，这里有个题目。如果每次抽烟要剩一个烟屁股，5个烟屁股能接成一支烟，那么你捡了20个烟屁股，能抽几支烟？给你30秒！

mildkiller(爱,已成往事)

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Last Updated: 2001-12-31
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