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美丽的斯坦纳圆链
Author:
孟宝兴
GeoGebra
New Resources
兩位數加法
柱體建築師
画直线等分三角形的面积
算柱 (兩位數)
【案例】圆柱体内放置一个大球六个小球
Discover Resources
winter vacation homework 3
test1
三視圖學生互動版
S6G7三视图
兩組對邊相等的四邊形（三年級）
Discover Topics
Solids or 3D Shapes
Stochastic Process or Random Process
Median Value
Mathematics
Pythagoras or Pythagorean Theorem