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GeoGebra
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四邉形 (四年級) 教師版
異分母分數減法
三位數除以一位數(二)
兩位數除以一位數(一)
第八周作业
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直角坐标
Copy of smps perimeter
Copy of cos, sin 與單位圓
「相似三角形」任务4的副本
等差数列、等比数列
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Square
Means
Straight Lines
Rectangle
Conic Sections