以下是关于【初中化学优质课大赛】的公开课/优质课视频，一共55个
21:1729-
20:4933 -
19:51131 -
42:4194 -
39:13116 -
40:0988 -
40:0996 -
41:4297 -
40:1755 -
39:3622 -
41:2518 -
15:3711 -
12:1545 -
15:0343 -
40:5867 -
13:3882 -
41:3591 -
12:3969 -
39:4050 -
37:1887 -
14:45119 -
12:1555 -
16:18137 -
14:1890 -
13:5598 -
11:5621 -
15:4881 -
16:35124 -
13:1043 -
39:0890 -
40:0780 -
40:1137 -
41:1325 -
38:14137 -
13:3036 -
10:5456 -
12:5019 -
12:4371 -
39:46125 -
13:4995 -
40:1870 -
39:1710 -
37:3196 -
12:30137 -
10:5789 -
14:4744 -
41:52112 -
14:0971 -
12:2120 -
41:1346 -
12:4995 -
11:5896 -
15:2130 -
12:16116 -
12:2690