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沈先生
GeoGebra
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湖南省张毅郴数字教研工作室 logo
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sanjiaohanshu
算柱 (兩位數)
三半圓間的相切圓(Codex╱2026.10.07)
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托勒密定理
立體圖形
長方體動態展開圖
我的第一个GGB绘本
公切線長度的計算的副本
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Hypothesis Testing
Right Triangles
Linear Programming or Linear Optimization
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