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保持比例

Author:hjyanghj

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球體建築師
找出對稱軸
画直线等分三角形的面积
GeoGebra笔记功能体验课件
兩組對邊相等和有直角的四邊形

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內外角平分線
我的社團圖形
[洋葱] 与相似有关的最值问题-Q2
直角三角形の三角比
物體的平面運動

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Tangent Line or Tangent
Constructions
Linear Programming or Linear Optimization
Cube
Statistics

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