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centre de gravité: 54 phrases in 15 subjects |
Astronautics | 1 |
Astronomy | 2 |
Athletics | 3 |
Aviation | 17 |
Chemistry | 1 |
Construction | 1 |
Information technology | 1 |
Judo | 1 |
Mechanic engineering | 6 |
Medical | 1 |
Metallurgy | 1 |
Military | 9 |
Physics | 1 |
Technology | 4 |
Trucks/Lorries | 5 |