数字通信课件\chapter1.PPT ............\chapter2.PPT ............\chapter3.PPT ............\Desk_top_.ini ............\序言.ppt ............\第一、二章(预备知识)-done.ppt ............\第七章05-done.ppt ............\第三章-done.ppt ............\第九章05-done.ppt ............\第五章.ppt ............\第八章05-done.ppt ............\第六章-done.ppt ............\第四章-done.ppt 数字通信课件