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S0A1 分段函数：选择方案
Author:
acchu
GeoGebra
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百分數及其應用
直線的斜率：水平變化 & 鉛垂變化
盈利與虧蝕
龙形曲线-分形龙
撒针估算面积实验
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圓形與相似形
三角函數的疊合
cute panda
教學－橫切面
数学教学新帮手
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Trigonometry
Mathematics
Solids or 3D Shapes
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