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T2 Geobra
Author:
Argon
T2
GeoGebra
New Resources
算柱 (兩位數)
四邊形的特性
兩組對邊相等的四邊形
兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
Discover Resources
圓圓求切圓
立體形體 - (18)正方體的表面積計算
四下_面積（一）(學生版)
切割圓面積的副本
动感数学
Discover Topics
Multiplication
Upper and Lower Sum or Riemann Sum
Scatter Plot
Linear Equations
Trapezoid