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倒數計時
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
兩位數除以一位數（一）
直角坐標平面上的旋轉變換
畫出對稱圖形
兩位數除以一位數（二）
【案例】2013年安徽高考15题
Discover Resources
奧運5色環
Sum of Interior Angles of Polygons 多邊形內角和
較複雜的周界問題(二)
信心水準與信賴區間的副本
多边形旋
Discover Topics
Constructions
Sequences and Series
Solids or 3D Shapes
Arithmetic Operations
Optimization Problems