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Angle of elevation and Angle of depression(仰角和俯角)
Author:
chisunch1
GeoGebra
New Resources
球體建築師
【案例】2018年全国1卷理科12题
畫出對稱圖形
兩位數除以一位數（二）
異分母分數減法
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zuiduan
slopefield_spin
氯化鈉晶體
平移
商高定理\水2的副本
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Numbers
Geometry
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Median Value