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Author:
李政憲
GeoGebra
New Resources
算柱 (兩位數)
找出對稱軸
兩位數加法
第八周作业
四邉形 (四年級) 教師版
Discover Resources
正弦定理
平行4
跳動的愛心－立體版
橢圓
任意截面切割正方体
Discover Topics
Pyramid
Parallelogram
Rhombus
Polygons
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