12:13
32:29
36:09
54:50
48:16
52:09
64:20
53:19
42:43
48:19
72:09
51:10
46:13
41:02
34:23
49:40
51:44
51:26
24:25
28:52
54:02
39:20
39:30
44:00
33:03
39:54
40:51
35:49
25:09
37:00
35:18
32:56
35:42
27:06
39:22
30:52
32:17
29:35
51:51
01.课程基本概述