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Q2
Author:
wang3213
GeoGebra
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算柱 (兩位數)
【案例】2018年全国1卷理科12题
異分母分數減法
兩位數加法
三位數除以一位數（二）
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Triangles with the same height
水波干涉
錯角---垂直平行綫
半角公式R.J. 沃克(R.J. Walker)
中華民國 ( 台灣 ) 國旗 National Flag of ROC ( Republic of China, Taiwan )
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Pyramid
Functions
Hyperbola
Subtraction
Similar Triangles