 |
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| conjunto de restrições hierárquico | |||
| hierárquica | |||
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Hierarchical : 50 phrases in 12 subjects |
| Automatic control | 1 |
| Communications | 6 |
| Economics | 1 |
| Electronics | 1 |
| Information technology | 20 |
| Law | 1 |
| Mathematics | 7 |
| Medical | 1 |
| Microsoft | 3 |
| Radio | 1 |
| Statistics | 3 |
| Work flow | 5 |