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99學測多選11
Author:
yangtsanwen
99學測多選11：找原點對空間平面2x-y=2上過點(2,2,2)之直線的投影點座標。(圖上D點) (請點選D點移動；按右鍵移動改變視角)
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四邉形 (四年級) 教師版
拼砌四邊形
畫出對稱圖形
三位數除以一位數（二）
直角坐標平面上的旋轉變換
Discover Resources
動圓的圓心軌跡為橢圓
y=a*sin(b*x)
Distributive Law 2 (分配率 2)
國旗
作業1
Discover Topics
Pie Chart or Circle Chart
Surface
Poisson Distribution
Vectors 3D (Three-Dimensional)
Complex Numbers