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QP3.18
Author:
Pokman Cheng
GeoGebra
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【案例】2018年全国1卷理科12题
找出對稱軸
算柱 (兩位數)
兩位數除以一位數（二）
兩組對邊相等的四邊形
Discover Resources
过圆上一点作切线，三步
九九乘法表的認識
向量求和动画演示
曾卉君的作品
平面截圆锥面
Discover Topics
Parabola
Parallelogram
Intersection
Quadratic Equations
Trigonometric Functions