dispositivo de control: 29 phrases in 12 subjects |
Chemistry | 3 |
Communications | 7 |
Electronics | 4 |
Environment | 2 |
Information technology | 3 |
Measuring instruments | 1 |
Mechanic engineering | 1 |
Microsoft | 1 |
Natural sciences | 1 |
Patents | 1 |
Telegraphy | 1 |
Transport | 4 |