推荐标准 : 36 phrases in 16 subjects |
Agriculture | 1 |
Animal husbandry | 5 |
Aviation | 6 |
Business | 1 |
Cryptography | 1 |
Economy | 4 |
Explosives and Explosive Ordnance Disposal | 1 |
Food service and catering | 2 |
General | 1 |
Hydroelectric power stations | 1 |
Information technology | 5 |
Plastics | 1 |
Space | 3 |
Technology | 2 |
Telecommunications | 1 |
Textile industry | 1 |