sondagens : 66 phrases in 18 subjects |
Astronautics | 1 |
Brazil | 2 |
Coal | 2 |
Communications | 11 |
Earth sciences | 4 |
Economy | 1 |
Electronics | 3 |
Environment | 3 |
General | 4 |
Information technology | 2 |
Life sciences | 12 |
Mathematics | 5 |
Natural sciences | 1 |
Oil / petroleum | 2 |
Patents | 2 |
Statistics | 8 |
Technology | 1 |
Transport | 2 |