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七巧板（tangram）的副本
Author:
颜峰
,
孟宝兴
拖动每个形状，用对应的点选择对象。
GeoGebra
GGB学习交流群：217440999 作者：云南师范大学 孟宝兴 QQ：297770550 邮箱：mengbaoxing@163.com
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國旗 (Claude 版)
世界平面地圖 (Codex╱2026.10.07)
伊朗國旗 (Codex╱2026.10.07)
Earth with coastline
Nested spiral octagon
Discover Resources
傅立葉級數 (2)
simulation of the uniform variable linear motion
三節棍
天佑數學三下B - 分數(二)
〃One〃
Discover Topics
Symmetry
Power Functions
Quadratic Functions
Curve Sketching
Exponential Functions