http://www.gougou.com/search?search=AutoCAD%202006%20%E7%AE%80%E4%BD%93%E4%B8%AD%E6%96%87%E7%89%88%E4%B8%8B%E8%BD%BD&id=1
http://58.251.57.206/down?cid=A528BC1BF2D4430AA00DB8D7232EE7BF91E75948&t=2&fmt=这个是auto cad2006,我用的,很好用的,而且功能也全