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| кси (буква греческого алфавита) | |||
| XI: 23 phrases in 7 subjects |
| European Union | 1 |
| Geography | 1 |
| High energy physics | 16 |
| Mathematics | 1 |
| Physics | 2 |
| Politics | 1 |
| Радиоактивное излучение | 1 |
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