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Author:
shan_haiying
GeoGebra
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第八周作业3
折扣
正方形雪花图案
比較五件物件的重量
球体的截面
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北區模考非選第二題 (2014.03.06)
外公切線作圖
扇形面積
選修數學
曲面指令练习(柱球转化)
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Subtraction
Parabola
Complex Numbers
Equations
Integers