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一、解题注意点1.是否有足够的面折成立体2.折成的立体的各个面是否对应。3.折成立体的前后形状与比例是否合适。4.各面上所附有的图形是否在适当位置上。二、举例
First, the solution points to note 1. Whether there is enough face folded into three-dimensional 2. What is the equivalent of all three-dimensional folded face. 3. folded into three-dimensional shape and proportion of the right before and after. 4. Attached to the surface of the graphics are in place. Second, for example