以下是关于【同周期元素】的公开课/优质课视频，一共128个
21:109-
36:1219 -
17:1588 -
17:17140 -
39:4950 -
06:59109 -
43:0463 -
49:11135 -
28:1110 -
43:2080 -
17:4059 -
21:0486 -
17:2358 -
55:2787 -
52:2120 -
1:00:2299 -
45:5088 -
1:27:0325 -
44:1510 -
42:1065 -
1:37:4966 -
50:3476 -
53:2368 -
1:28:3623 -
49:4939 -
1:36:0125 -
1:51:5868 -
47:49138 -
1:26:0718 -
56:5682 -
59:1083 -
48:2775 -
53:54134 -
49:15129 -
44:1431 -
50:23134 -
1:34:38115 -
1:13:2342 -
59:5629 -
48:2654 -
43:5677 -
41:4689 -
47:1463 -
57:587 -
40:5638 -
52:3870 -
48:3542 -
45:3180 -
42:21128 -
20:1982 -
36:07139 -
06:4223 -
11:0437 -
49:3037 -
43:20126 -
07:3732 -
08:42138 -
09:1353 -
07:1719 -
43:13132 -
49:3025 -
34:1422 -
44:0343 -
43:42113 -
16:0860 -
48:1355 -
1:27:2926 -
43:2099 -
17:14107 -
18:0474 -
16:0792 -
16:2536 -
43:20115 -
47:2118 -
41:5937 -
48:11113 -
55:1685 -
18:0469 -
42:1096 -
41:5932 -
41:0680 -
16:03132 -
14:1115 -
36:3092 -
42:5476 -
44:0443 -
41:06119 -
38:4688 -
13:1077 -
40:0321 -
35:37109 -
36:48100 -
32:31102 -
39:01124 -
41:5648 -
41:56111 -
15:195 -
07:02136 -
41:4859 -
39:43128