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r-f: 26 phrases in 15 subjects |
Agriculture | 1 |
Air defense | 2 |
Animal husbandry | 1 |
Automobiles | 3 |
Chemistry | 1 |
Dancing | 1 |
Economy | 2 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
International trade | 2 |
Metallurgy | 7 |
Nautical | 1 |
Pharmacology | 1 |
Refrigeration | 1 |
Technology | 1 |