| 安全生产基本知识 | |
| 1 |
43:20 508 |
| 2 |
50:00 469 |
| 3 |
50:00 489 |
| 4 |
53:20 411 |
| 5 |
26:40 441 |
| 6 |
46:40 418 |
| 7 |
43:20 431 |
| 8 |
43:20 434 |
| 9 |
46:40 412 |
| 10 |
01:06:40 529 |
| 11 |
50:00 439 |
| 12 |
50:00 466 |
| 专业相关基础知识 | |
| 13 |
50:00 403 |
| 14 |
43:20 437 |
| 15 |
01:23:20 444 |
| 16 |
38:20 485 |
| 17 |
25:00 637 |
| 18 |
36:40 414 |
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60:00 443 |
| 20 |
38:20 547 |
塔式起重机03