| 安全生产基本知识 | |
| 1 |
43:20 746 |
| 2 |
50:00 622 |
| 3 |
50:00 628 |
| 4 |
53:20 620 |
| 5 |
26:40 629 |
| 6 |
46:40 540 |
| 7 |
43:20 553 |
| 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 |
01:23:20 560 |
| 14 |
38:20 535 |
| 15 |
25:00 678 |
| 16 |
36:40 677 |
| 17 |
60:00 657 |
| 18 |
38:20 836 |
塔式起重机03