duplex : 59 phrases in 14 subjects |
Chemistry | 1 |
Communications | 24 |
Cultural studies | 1 |
Earth sciences | 1 |
Electronics | 10 |
Environment | 1 |
Information technology | 7 |
Materials science | 2 |
Mechanic engineering | 3 |
Medical | 1 |
Metallurgy | 2 |
Microsoft | 1 |
Statistics | 2 |
Technology | 3 |