| 安全生产基本知识 | |
| 1 |
43:20 419 |
| 2 |
50:00 437 |
| 3 |
50:00 449 |
| 4 |
53:20 415 |
| 5 |
26:40 434 |
| 6 |
46:40 449 |
| 7 |
43:20 406 |
| 8 |
43:20 400 |
| 9 |
46:40 420 |
| 10 |
01:06:40 437 |
| 11 |
50:00 376 |
| 12 |
50:00 438 |
| 专业相关基础知识 | |
| 13 |
48:20 473 |
| 14 |
48:20 500 |
| 15 |
38:20 441 |
| 16 |
36:40 431 |
| 17 |
50:00 425 |
| 18 |
60:00 416 |
| 19 |
33:20 418 |
| 20 |
16:40 480 |
| 21 |
48:20 465 |
施工升降机05