以下是关于【中国古代科技】的公开课/优质课视频，一共49个
59:5620-
51:0512 -
53:4246 -
1:01:06134 -
07:05113 -
05:5994 -
07:0610 -
07:0629 -
07:0713 -
07:0521 -
07:0477 -
06:02130 -
46:0370 -
42:2493 -
46:0388 -
42:2429 -
46:5520 -
42:2461 -
23:2617 -
27:4549 -
16:3296 -
31:5949 -
38:3377 -
46:5578 -
40:12120 -
08:4433 -
42:2472 -
17:47137 -
11:19106 -
53:1793 -
45:2154 -
23:26109 -
18:23106 -
13:425 -
46:5846 -
13:1743 -
50:0991 -
40:1353 -
47:4978 -
42:38105 -
43:0256 -
44:54110 -
44:0877 -
37:5436 -
26:00125 -
38:4918 -
34:1771 -
44:3716 -
38:04108