以下是关于【秒的认识】的公开课/优质课视频，一共33个
1:03:0325-
41:42123 -
40:14100 -
31:5699 -
40:3718 -
41:51132 -
41:4239 -
44:48110 -
32:4269 -
26:3185 -
15:35101 -
06:0423 -
05:59127 -
39:5671 -
26:3179 -
34:4887 -
39:568 -
44:4856 -
43:42121 -
44:3383 -
30:55105 -
38:1658 -
10:58134 -
46:2953 -
40:1162 -
40:0090 -
07:1179 -
40:0062 -
40:24116 -
14:1934 -
49:3293 -
37:5319 -
39:2464