| 安全生产基本知识 | |
| 1 |
43:20 549 |
| 2 |
50:00 550 |
| 3 |
50:00 550 |
| 4 |
53:20 581 |
| 5 |
26:40 507 |
| 6 |
46:40 519 |
| 7 |
43:20 476 |
| 8 |
43:20 563 |
| 9 |
46:40 547 |
| 10 |
01:06:40 482 |
| 11 |
50:00 497 |
| 12 |
50:00 466 |
| 专业相关基础知识 | |
| 13 |
48:20 509 |
| 14 |
48:20 518 |
| 15 |
38:20 507 |
| 16 |
36:40 463 |
| 17 |
50:00 553 |
| 18 |
60:00 567 |
| 19 |
33:20 523 |
| 20 |
16:40 517 |
| 21 |
48:20 542 |
施工升降机03