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623劉虹圻 雪花
Author:
呂麗珠
GeoGebra
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【案例】2013年安徽高考15题
拼砌四邊形
四邊形的特性
三位數除以一位數（一）
判斷球體
Discover Resources
Simultaneous Linear Equations 聯立二元一次方程
PreEnigma-1
和的完全平方
圓的面積的副本
Copy of Linear Transformations
Discover Topics
Optimization Problems
Median Value
Symmetry
Sequences and Series
Orthocenter