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双动点问题
Author:
陈宜红
Topic:
Congruence
,
Constructions
,
Triangles
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
画直线等分三角形的面积
異分母分數減法
三位數除以一位數（一）
兩位數加法
Discover Resources
Symmetric 設計對稱圖案(一條對稱軸)(垂直)
Proofs Without Words
Prism and Cylinder
参数曲线
計算圖形周界（小六下）
Discover Topics
Trapezoid
Cube
Logarithmic Functions
Step Functions
Limits