| 安全生产基本知识 | |
| 1 |
43:20 745 |
| 2 |
50:00 622 |
| 3 |
50:00 628 |
| 4 |
53:20 619 |
| 5 |
26:40 628 |
| 6 |
46:40 539 |
| 7 |
43:20 552 |
| 8 |
43:20 529 |
| 9 |
46:40 528 |
| 10 |
01:06:40 587 |
| 专业相关基础知识 | |
| 11 |
50:00 554 |
| 12 |
43:20 580 |
| 13 |
01:23:20 558 |
| 14 |
38:20 533 |
| 15 |
25:00 675 |
| 16 |
36:40 677 |
| 17 |
60:00 657 |
| 18 |
38:20 836 |
塔式起重机04