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play tennis
Author:
李春培
play tennis
GeoGebra
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拼砌四邊形
判斷球體
兩位數除以一位數（二）
直角坐標平面上的旋轉變換
【案例】2018年全国1卷理科12题
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兩位數除法
Chapter 11
旋轉扇形
拋物線2--焦點法
正圆锥展开图
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Polynomial Functions
Calculus
Terms
Correlation
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