| 安全生产基本知识 | |
| 1 |
43:20 615 |
| 2 |
50:00 540 |
| 3 |
50:00 566 |
| 4 |
53:20 499 |
| 5 |
26:40 526 |
| 6 |
46:40 513 |
| 7 |
43:20 511 |
| 8 |
43:20 516 |
| 9 |
46:40 485 |
| 10 |
01:06:40 558 |
| 11 |
50:00 515 |
| 12 |
50:00 513 |
| 专业相关基础知识 | |
| 13 |
50:00 460 |
| 14 |
43:20 522 |
| 15 |
01:23:20 484 |
| 16 |
38:20 529 |
| 17 |
25:00 620 |
| 18 |
36:40 466 |
| 19 |
60:00 511 |
| 20 |
38:20 562 |
塔式起重机04