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二年级数学下册六《认识图形》认识角精炼北师大版.doc

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11认识角1找一找下面哪些是角。(在角的下面画) 2比大小。 3在下图所示的时刻中，时针和分针所形成的角属于什么角? 4标出下面各图中的角。 21略 2 3锐角 钝角 直角 4略

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