| 安全生产基本知识 | |
| 1 |
43:20 442 |
| 2 |
50:00 416 |
| 3 |
50:00 449 |
| 4 |
53:20 405 |
| 5 |
26:40 433 |
| 6 |
46:40 392 |
| 7 |
43:20 389 |
| 8 |
43:20 382 |
| 9 |
46:40 377 |
| 10 |
01:06:40 424 |
| 11 |
50:00 389 |
| 12 |
50:00 395 |
| 专业相关基础知识 | |
| 13 |
50:00 514 |
| 14 |
60:00 402 |
| 15 |
33:20 468 |
| 16 |
16:40 388 |
| 17 |
48:20 469 |
| 18 |
48:20 451 |
| 19 |
48:20 407 |
| 20 |
38:20 392 |
| 21 |
36:40 427 |
施工升降机02