| 安全生产基本知识 | |
| 1 |
43:20 749 |
| 2 |
50:00 623 |
| 3 |
50:00 629 |
| 4 |
53:20 623 |
| 5 |
26:40 631 |
| 6 |
46:40 542 |
| 7 |
43:20 555 |
| 8 |
43:20 530 |
| 9 |
46:40 529 |
| 10 |
01:06:40 587 |
| 专业相关基础知识 | |
| 11 |
50:00 556 |
| 12 |
43:20 580 |
| 13 |
01:23:20 560 |
| 14 |
38:20 537 |
| 15 |
25:00 683 |
| 16 |
36:40 679 |
| 17 |
60:00 659 |
| 18 |
38:20 842 |
塔式起重机04