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Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,*,*,第一章空间几何体,1/40,2/40,3/40,4/40,5/40,6/40,7/40,8/40,9/40,10/40,11/40,12/40,13/40,14/40,15/40,16/40,17/40,18/40,19/40,20/40,21/40,22/40,23/40,24/40,25/40,26/40,27/40,28/40,特征,棱锥,棱台,定底面,只有一个面是多边形,此面即为底面,两个相互平行,面即为底面,看侧棱,相交于一点,延长后相交于一点,29/40,30/40,31/40,32/40,33/40,34/40,35/40,36/40,37/40,38/40,39/40,40/40,
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