 |
| |||
| qualité des enregistrements | |||
| качество материала: 5 phrases in 5 subjects |
| Chemistry | 1 |
| Forestry | 1 |
| Mechanic engineering | 1 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 1 |
|
| |||
| qualité des enregistrements | |||
| качество материала: 5 phrases in 5 subjects |
| Chemistry | 1 |
| Forestry | 1 |
| Mechanic engineering | 1 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 1 |