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可拖动A、B 改变形状
Author:
孟宝兴
GeoGebra
New Resources
異分母分數減法
拼砌四邊形
【案例】2013年安徽高考15题
第八周作业
三位數除以一位數（一）
Discover Resources
聖路易拱門
a Geogebra file created by the first pre-service teacher
線性規劃
拋物線1--焦點法
正圆台展开图
Discover Topics
Right Triangles
Tree Diagrams
Arithmetic Operations
Natural Numbers
Cosine