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正弦函数图像
Author:
李红
GeoGebra
New Resources
柱體建築師
兩位數除以一位數（二）
兩組對邊相等的四邊形
画直线等分三角形的面积
四邉形 (四年級) 教師版
Discover Resources
three circle touching each other
一元二次方程式-應用問題(兩圓相切)
(3D) Tasks: Pyramid, Paper folding & Solid of revolution[20170615]
Shoot Game
翰林數學_1下_CH2-2_畫二元一次方程式的圖形
Discover Topics
Reflection
Addition
Differential Equation
Random Experiments
Linear Equations