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優良作品1(力誌)
Author:
Ching-Hui Chou
GeoGebra
New Resources
錐體建築師
球体的体积推导（优化版）
算柱 (兩位數)
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
Discover Resources
龍騰4_1-1講進4
Elementary school math
Apollonius Problem gergonne 3
美國隊長
Trigonometric Ratios of Any Angle
Discover Topics
Function Graph
Differential Calculus
Trigonometry
Congruence
Perimeter