| 安全生产基本知识 | |
| 1 |
47:30 703 |
| 2 |
01:33:50 461 |
| 3 |
01:09:35 461 |
| 4 |
01:10:00 478 |
| 专业相关基础知识 | |
| 5 |
46:00 487 |
| 6 |
53:00 499 |
| 7 |
43:00 433 |
| 8 |
26:00 435 |
| 9 |
01:05:00 424 |
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45:00 488 |
| 11 |
36:00 476 |
| 12 |
54:00 451 |
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48:00 413 |
| 14 |
44:00 426 |
| 15 |
37:00 479 |
施工升降机司机04