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| operator's check (Konstantin 1966) | |||
| проверка оператором: 27 phrases in 9 subjects |
| Astronautics | 1 |
| Aviation | 2 |
| Electronics | 1 |
| Information technology | 6 |
| Mass media | 6 |
| Mathematics | 1 |
| Oil and gas | 1 |
| Programming | 8 |
| Technology | 1 |
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