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>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>第一章第二章第三章第四章第五章第六章第七章第八章第九章第十章第十一章目录初识AutoCAD2007··············4页辅助绘图··················6页绘制简单二维图形对象··································9页1.绘制直线、构造线、射线·····························9页2.绘制点、矩形、正多边形··························