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视觉差，平行线
Author:
汪丽
GeoGebra
New Resources
算柱 (兩位數)
【案例】2013年安徽高考15题
畫出對稱圖形
三位數除以一位數（一）
兩組對邊相等的四邊形
Discover Resources
Line Perpendicular to Plane 垂直於平面的直線
封閉區域著色２
拼貼2
勾股定理
翰林數學_2下_CH3-2_ASA作圖
Discover Topics
Geometric Distribution
Tree Diagrams
Optimization Problems
Statistics
Hypergeometric Distribution