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circumCircle
作者：
ckh2007
GeoGebra
最新資源
Ellipse and Equation
Measuring Cup
Weighing Scales: Lessons and Practices
WC 2018
apec
探索資源
Conjectures about Complex roots of polynomials
Histo2
A lesson by Mr. Nass
ASA Triangle Congruence
Transversal Intersects Parallel Lines
Congruency of triangles
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