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BkD_act15_03c
Author:
Luk Sir
GeoGebra
New Resources
三位數除以一位數（二）
拼砌四邊形
兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
Discover Resources
E-X 电势-X
Redefining Trigonometry by a Unit Circle
異分母分數加法
Testing slope
特殊四边形的转换
Discover Topics
Frequency Distribution
Planes
Vectors
Secant Line or Secant
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