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玖数
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GeoGebra
New Resources
三位數除以一位數（一）
拼砌四邊形
近似值：有效數字
算柱 (兩位數)
兩組對邊相等的四邊形
Discover Resources
三角函數的疊合
阿波羅圓
Building Prisms 建造角柱體
力的拆解
剪切成正三棱柱（制作：李三军，修订：孟宝兴）
Discover Topics
Stochastic Process or Random Process
Continuity
Piecewise Functions
Bar Chart or Bar Graph
Vectors 3D (Three-Dimensional)