 |
| |||
| 解集 | |||
|
solution set : 5 phrases in 5 subjects |
| Aviation | 1 |
| Information technology | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Scientific | 1 |
|
| |||
| 解集 | |||
|
solution set : 5 phrases in 5 subjects |
| Aviation | 1 |
| Information technology | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Scientific | 1 |