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圓形與相似形
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陳兪宏
培英國三上學期第二次段考填充題20.
GeoGebra
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sanjiaohanshu
錐體建築師
柱體建築師
三位數除以一位數（一）
拼砌四邊形
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判斷球體 7
增長的圓
P6 圓周02D
Lesson02 absolute value function
三角函數的繪圖2-1
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Secant Line or Secant
Vectors 3D (Three-Dimensional)
Hyperbola
Line Segment
Ellipse