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blake-wilcox documents
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Srimad Bhagavtam 1.2.18-1.1.21 Invocation prayers Recap of last week SB 1.2.18-1.2.21 Session Summary Smile References
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4-3~4-5 03366045 鄭力瑋. concave polygon:convex polygon: Convex polygons 「凸」的定義是:圖形內任意兩點的連線不會經過圖形外部。