Youtube播放链接:https://www.youtube.com/watch?v=ewcO6x6FVqY&list=PLPYvFn7exIjttEo-83c9GKT25H-tQBduF 优酷的视频播放列表: 第一学期: http://v.youku.com/v_show/id_XODA2NDM5OTI=.html?spm=a2hzp.8253876.0.0&f=3226482 第二学期: http://v.youku.com/v_show/id_XMTIwODMyOTcy.html?spm=a2hzp.8253876.0.0&f=3769855 Download as PDF 2019-02-23