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3-6-07
Author:
Tzuen Hsu
GeoGebra
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讀磅
漂亮的摇摆曲线
多邊形的面積
【案例】2013年安徽高考15题
兩位數除以一位數（二）
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方格紙上畫梯形3
Lituus
三節棍
艾薛爾Escher
圓周_半圓內的半圓
Discover Topics
Probability
Correlation
LCM and GCD
Linear Equations
Upper and Lower Sum or Riemann Sum