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unit operation : 17 phrases in 12 subjects |
| Aviation | 1 |
| Criminal law | 3 |
| Electric traction | 1 |
| Finances | 1 |
| General | 4 |
| Immigration and citizenship | 1 |
| Information technology | 1 |
| Metallurgy | 1 |
| Politics | 1 |
| Taxes | 1 |
| Technology | 1 |
| Transport | 1 |
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