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课 题 : 63 phrases in 20 subjects |
Agriculture | 12 |
Automobiles | 1 |
Aviation | 2 |
Bridge construction | 2 |
Business | 5 |
China | 1 |
Consulting | 1 |
Economy | 1 |
Electronics | 4 |
Engineering geology | 2 |
Explosives and Explosive Ordnance Disposal | 3 |
Heavy equipment vehicles | 1 |
Horticulture | 1 |
Information technology | 1 |
Librarianship | 3 |
Metallurgy | 1 |
Oil / petroleum | 1 |
Sports | 1 |
Technology | 15 |
Telecommunications | 5 |