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徐长俊
GeoGebra
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【案例】2018年全国1卷理科12题
兩位數除以一位數（二）
柱體建築師
兩組對邊相等和有直角的四邊形
錐體建築師
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基測試題旋轉
二次函数与一元二次方程和一元二次不等式
拋物線2-焦點法
椭圆的定义
三角函數的描點與圖形
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Combinatorics
Vectors 3D (Three-Dimensional)
Terms
Parallelogram
Differential Equation