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外擺線
Vẽ đường cong Cycloid
外擺線
Author:
蘇溥鈞
Vẽ đường cong Cycloid
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Vẽ đường cong Cycloid
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錐體建築師
異分母分數減法
三位數除以一位數（二）
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
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奠基活動20141008
正弦與餘弦值的大小關係
gjh-g01-01 單項乘以兩項差
分數乘法3
四下_面積（一）(教師版)
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Equations
Cone
Area
Bar Chart or Bar Graph
Histogram
