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全等—正方形的旋转
Author:
詹凯
Topic:
Congruence
,
Triangles
GeoGebra
New Resources
柱體建築師
兩位數除以一位數（二）
四邉形 (四年級) 教師版
算柱 (兩位數)
【案例】2018年全国1卷理科12题
Discover Resources
Time
向量分解
blue
鸚鵡螺旋線
EnergyMath 2-3 棣美弗定理的副本
Discover Topics
Incircle or Inscribed Circle
Matrices
Curve Sketching
Polynomial Functions
Variance