| |||
| 分级文件; 分层文件 | |||
|
Hierarchical File : 8 phrases in 6 subjects |
| Electronics | 1 |
| Information technology | 1 |
| Multimedia | 1 |
| Project management | 2 |
| Space | 1 |
| Technology | 2 |
| |||
| 分级文件; 分层文件 | |||
|
Hierarchical File : 8 phrases in 6 subjects |
| Electronics | 1 |
| Information technology | 1 |
| Multimedia | 1 |
| Project management | 2 |
| Space | 1 |
| Technology | 2 |