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我是一名初中数学教师，希望能在这里学习GGB的相关知识， 更好的为课堂服务。
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矩形周长一定时正方形面积最大
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线绳艺术2（动图）
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美图欣赏-线绳艺术
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十进制与其他进制的转化
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勾股定理证明2
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五星红旗
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探索到两定点的距离之积为定值的点的轨迹
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拿破仑三角形
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勾股定理证明
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完全图及其变形
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