http://218.90.169.202/download/autocad/ACAD2004.exehttp://ntzcb.com.cn/resource/%A1%AA%A1%AA%C8%ED%BC%FE%CF%C2%D4%D8%A1%AA%A1%AA/%CD%BC%D0%CE%CD%BC%CF%F1/AutoCAD2004.zip