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三线八角
Author:
谭伟
GeoGebra
New Resources
三位數除以一位數（二）
直角坐標平面上的旋轉變換
畫出對稱圖形
【案例】2013年安徽高考15题
【案例】2018年全国1卷理科12题
Discover Resources
K9@cn
slopefield_spin
三角柱算體積(可以切開)
幾何塗色
Test
Discover Topics
Circle
Parabola
Linear Regression
Stochastic Process or Random Process
Trigonometric Functions