以下是关于【我们知道的磁铁】的公开课/优质课视频，一共85个
42:1497-
42:1494 -
44:29139 -
50:3935 -
14:03139 -
44:0169 -
22:35115 -
39:4936 -
46:0549 -
05:0759 -
04:3522 -
1:09:5182 -
04:1728 -
06:2810 -
40:54112 -
06:2947 -
41:16134 -
01:5544 -
1:06:16135 -
06:1580 -
06:13120 -
39:5984 -
06:2777 -
37:3090 -
43:46130 -
47:2983 -
42:1475 -
42:4547 -
27:4392 -
40:5467 -
46:0539 -
1:09:5167 -
41:3954 -
47:1190 -
35:06106 -
39:5550 -
40:428 -
39:5118 -
33:03131 -
40:55106 -
45:3441 -
38:5839 -
43:2071 -
45:3336 -
40:37117 -
41:2438 -
37:4798 -
22:1738 -
48:128 -
20:3999 -
34:4279 -
40:5372 -
40:0541 -
40:4249 -
24:48136 -
53:30106 -
38:2469 -
38:2452 -
40:3341 -
40:0765 -
39:3982 -
39:347 -
53:3033 -
50:01124 -
44:0964 -
41:54139 -
39:58132 -
47:1330 -
09:2680 -
42:22138 -
05:2463 -
09:0047 -
10:1410 -
27:3665 -
25:1432 -
45:34116 -
40:5643 -
39:5769 -
43:2521 -
45:27129 -
44:59102 -
40:3482 -
40:19131 -
42:4583 -
41:2184