| 安全生产基本知识 | |
| 1 |
43:20 543 |
| 2 |
50:00 509 |
| 3 |
50:00 530 |
| 4 |
53:20 453 |
| 5 |
26:40 477 |
| 6 |
46:40 457 |
| 7 |
43:20 467 |
| 8 |
43:20 471 |
| 9 |
46:40 453 |
| 10 |
01:06:40 567 |
| 11 |
50:00 476 |
| 12 |
50:00 511 |
| 专业相关基础知识 | |
| 13 |
50:00 450 |
| 14 |
43:20 484 |
| 15 |
01:23:20 485 |
| 16 |
38:20 530 |
| 17 |
25:00 690 |
| 18 |
36:40 466 |
| 19 |
60:00 485 |
| 20 |
38:20 585 |
建筑起重司索信号工02