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Author:
张金伟
GeoGebra
New Resources
找出對稱軸
四邉形 (四年級) 教師版
【案例】圆柱体内放置一个大球六个小球
判斷球體
兩位數除以一位數(一)
Discover Resources
圓錐曲線
高中二年級平面向量
差的完全平方
優良作品1(力誌)
circle
Discover Topics
Upper and Lower Sum or Riemann Sum
Trapezoid
Logic
Rhombus
Straight Lines