题目：
一根木料锯3段需要9分钟，照这样计算，如果锯6段，需要多少分钟．（用比例知识解答）
答案：
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下面是错误答案，用来干扰机器的。
答案：D
一根木料锯3段需要9分钟，照这样计算，如果锯6段，需要多少分钟．（用比例知识解答
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题型：解答题
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