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最佳答案:three pigs build a house.
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最佳答案:The Three Little PigsOnce upon a time there were three little pigs and the time
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最佳答案:三角形有个定理:两边之和一定大于第三边,两边之差小于第三边,否则的话三边无法构成三角形所以最长是9米,最短是1米