1.有一串数1,1,2,3,5,8...从第三个数起,每个数都是前两个数之和,在这串数的前1997个数中,有( )个是5的倍数?2.小明参加奥数比赛,共20道题,对一题得5分,错一题不但不得分,还要倒扣3分,小明共得
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![1.有一串数1,1,2,3,5,8...从第三个数起,每个数都是前两个数之和,在这串数的前1997个数中,有( )个是5的倍数?2.小明参加奥数比赛,共20道题,对一题得5分,错一题不但不得分,还要倒扣3分,小明共得](/uploads/image/z/13850848-64-8.jpg?t=1.%E6%9C%89%E4%B8%80%E4%B8%B2%E6%95%B01%2C1%2C2%2C3%2C5%2C8...%E4%BB%8E%E7%AC%AC%E4%B8%89%E4%B8%AA%E6%95%B0%E8%B5%B7%2C%E6%AF%8F%E4%B8%AA%E6%95%B0%E9%83%BD%E6%98%AF%E5%89%8D%E4%B8%A4%E4%B8%AA%E6%95%B0%E4%B9%8B%E5%92%8C%2C%E5%9C%A8%E8%BF%99%E4%B8%B2%E6%95%B0%E7%9A%84%E5%89%8D1997%E4%B8%AA%E6%95%B0%E4%B8%AD%2C%E6%9C%89%EF%BC%88+%EF%BC%89%E4%B8%AA%E6%98%AF5%E7%9A%84%E5%80%8D%E6%95%B0%3F2.%E5%B0%8F%E6%98%8E%E5%8F%82%E5%8A%A0%E5%A5%A5%E6%95%B0%E6%AF%94%E8%B5%9B%2C%E5%85%B120%E9%81%93%E9%A2%98%2C%E5%AF%B9%E4%B8%80%E9%A2%98%E5%BE%975%E5%88%86%2C%E9%94%99%E4%B8%80%E9%A2%98%E4%B8%8D%E4%BD%86%E4%B8%8D%E5%BE%97%E5%88%86%2C%E8%BF%98%E8%A6%81%E5%80%92%E6%89%A33%E5%88%86%2C%E5%B0%8F%E6%98%8E%E5%85%B1%E5%BE%97)
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