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圆锥曲线折纸操作题（教材案例）
Author:
蔡永志
Topic:
Conic Sections
,
Ellipse
,
Hyperbola
GeoGebra
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湖南省张毅郴数字教研工作室 logo
Earth with coastline
兩組對邊相等和有直角的四邊形
國旗 (Claude 版)
近似值：有效數字
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Q5-7
folding paper by Mr LO WY
第二次:20190110
圓周_半圓內的半圓
二次函數的圖形的副本
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Diagrams
LCM and GCD
Functions
Line Segment
Congruence