| 安全生产基本知识 | |
| 1 |
36:15 995 |
| 2 |
43:52 642 |
| 3 |
40:33 585 |
| 4 |
41:54 638 |
| 5 |
54:29 637 |
| 6 |
40:52 572 |
| 7 |
57:17 600 |
| 8 |
35:20 600 |
| 9 |
45:07 626 |
| 10 |
45:43 593 |
| 11 |
45:03 616 |
| 12 |
46:07 610 |
| 专业相关基础知识 | |
| 13 |
01:03:54 578 |
| 14 |
49:48 592 |
| 15 |
45:35 610 |
| 16 |
29:46 574 |
| 17 |
46:00 630 |
| 18 |
53:16 627 |
| 19 |
53:15 655 |
| 20 |
51:17 595 |
| 21 |
28:28 605 |
| 22 |
36:56 620 |
门桥安拆02