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能量守恆
Author:
李春培
能量守恆
GeoGebra
New Resources
兩位數加法
兩組對邊相等的四邊形
【案例】圆柱体内放置一个大球六个小球
兩位數除以一位數（一）
錐體建築師
Discover Resources
已知正三角形內部一點到三頂點距離求面積
Homework5
string art
Copy of 周界
CBTL_science_rcpet
Discover Topics
Functions
Orthocenter
Pythagoras or Pythagorean Theorem
Similarity Transformation or Similarity
Straight Lines