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Author:Jensen Wong

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畫出對稱圖形
【案例】2013年安徽高考15题
三位數除以一位數（二）
判斷球體
sanjiaohanshu

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費氏螺旋 (基本作圖)
弓形塗顏色
圓與兩平行切線
正立方體展開
地球－完整球面

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Quadratic Equations
Hyperbola
Numbers
Ellipse
Mathematics

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