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| combination of (combination of n elements in a group of size r • combination of n elements taken r at a time) | |||
| сочетание из: 18 phrases in 10 subjects |
| Automated equipment | 1 |
| Cooking | 1 |
| General | 1 |
| Information technology | 1 |
| Leather | 2 |
| Makarov | 5 |
| Mathematics | 3 |
| Perfume | 1 |
| Technology | 2 |
| Textile industry | 1 |