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圆锥的侧面展开图3D动画的副本
Author:
张健
,
qianqianhouhou
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GeoGebra
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兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
sanjiaohanshu
找出對稱軸
三位數除以一位數（一）
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真分數相乘
小時鐘
立體圖形 錐體
三次函數圖形變化
圆锥曲线的产生
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Reflection
Plane Figures or Shapes
Polygons
Arithmetic Operations
Definite Integral