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[学用] 时钟
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[洋葱] 二次函数中的将军饮马-下Q2
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[S0G0] 从将军饮马谈几何线段显示
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S0A1 分段函数：选择方案
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洋葱初中数学
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圆内接与圆外切多边形
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圆面积與扇形分割-0
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正立方體
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[学用] 勾股定理的几何原本证明3
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[学用] 勾股定理的几何原本证明2
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[学用] 勾股定理的几何原本证明
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余弦定理
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[洋葱] 勾股定理余弦定理
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广东2018-25
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Ebbinghaus 错觉v2
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Ebbinghaus illusion
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转盘机率模拟5：显示统计结果
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转盘机率模拟4：累计统计结果
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建中科學100-8
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建中科學班100-1：拋物線與圓
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等腰三角形三心的觀察
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[学用] 螺线线与圣诞树
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科
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学用数学
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