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杯子反射光線(包絡)
Author:
陳柄何
Topic:
Curve Sketching
GeoGebra
New Resources
三位數除以一位數（二）
兩組對邊相等的四邊形
異分母分數減法
【案例】2018年全国1卷理科12题
sanjiaohanshu
Discover Resources
複數等比級數
任務2
S5 geometry
黃金矩形
基础知识
Discover Topics
Parametric Curves
Polygons
Volume
Mode
Exponent