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保持2:3:4
Author:
hjyanghj
Topic:
Geometry
GeoGebra
New Resources
三位數除以一位數（二）
四邊形的特性
第八周作业
【案例】圆柱体内放置一个大球六个小球
球體建築師
Discover Resources
三角形全等的理由 – 題3
分段移動
柱體體積(三角形)
切割正十二面體(平)
百變火柴
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Angles
Algebra
Set Theory
Division
Expected Value