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GeoGebra
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常见四边形是否是双心四边形
圓的切線方程
第八周作业3
第三周作业效果演示
百分數及其應用
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對數函數圖
GGB DAY3
電工機械及基本電學圖解
兩直線的銳夾角
开关灯
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Surface
Parabola
Circumcircle or Circumscribed Circle
Exponential Functions
Tangent Line or Tangent