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control unit : 94 phrases in 15 subjects |
Agriculture | 1 |
Communications | 18 |
Cultural studies | 1 |
Earth sciences | 7 |
Electronics | 1 |
Finances | 1 |
Forestry | 1 |
General | 3 |
Industry | 1 |
Information technology | 23 |
Mechanic engineering | 17 |
Medical | 1 |
Natural sciences | 1 |
Politics | 3 |
Transport | 15 |