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再作万年历单晨
Author:
单晨
GeoGebra
New Resources
錐體建築師
異分母分數減法
拼砌四邊形
三位數除以一位數（二）
三位數除以一位數（一）
Discover Resources
銳角三角函數值的大小比較
螢橋國中80209傅筱筑
外心
彈幕模擬
用向量找北极星
Discover Topics
Kite
Curve Sketching
Arithmetic Mean
Similarity Transformation or Similarity
Congruence