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BkD_act15_03c
Author:
Luk Sir
GeoGebra
New Resources
拼砌四邊形
異分母分數減法
兩位數除以一位數（二）
【案例】2013年安徽高考15题
判斷球體
Discover Resources
S2,3,5 Statistics
三角形三內角和
外積無結合律
高尔顿钉板实验
圆内的迭代反射2
Discover Topics
Pythagoras or Pythagorean Theorem
Terms
Combinatorics
Arithmetic
Conic Sections