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| système d'enseignement | |||
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система обучения : 14 phrases in 8 subjects |
| Aviation | 2 |
| Computers | 1 |
| Education | 4 |
| European Union | 1 |
| General | 3 |
| Military | 1 |
| Mining | 1 |
| Psychophysiology | 1 |
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