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活动三：应用性质
Author:
孟宝兴
GeoGebra
New Resources
長方體平面投影 (Codex版)
近似值：有效數字
AI 訓練教室
Earth with coastline
球體建築師
Discover Resources
科學記號與小數點的位移
畢氏定理證明
二次涵数的图象y=ax^2+b的副本
网易云音乐
利用海龟来趣味演示三角形三边的关系
Discover Topics
Incircle or Inscribed Circle
Real Numbers
Combinatorics
Circle
Optimization Problems