| 安全生产基本知识 | |
| 1 |
43:20 837 |
| 2 |
50:00 458 |
| 3 |
50:00 425 |
| 4 |
53:20 456 |
| 5 |
26:40 427 |
| 6 |
46:40 408 |
| 7 |
43:20 425 |
| 8 |
43:20 395 |
| 9 |
46:40 388 |
| 10 |
01:06:40 418 |
| 11 |
50:00 376 |
| 12 |
50:00 409 |
| 专业相关基础知识 | |
| 13 |
48:20 463 |
| 14 |
48:20 423 |
| 15 |
38:20 424 |
| 16 |
36:40 417 |
| 17 |
50:00 440 |
| 18 |
60:00 435 |
| 19 |
33:20 427 |
| 20 |
16:40 402 |
| 21 |
48:20 422 |
施工升降机02