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| ampliacion | |||
| cruzamiento mejorante | |||
| formación complementaria | |||
| mejora | |||
| rehabilitación | |||
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| mejorar 128 | |||
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| mejorar calidad | |||
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upgraded : 19 phrases in 12 subjects |
| Agriculture | 2 |
| Chemistry | 2 |
| Communications | 2 |
| Economics | 1 |
| Education | 2 |
| Environment | 1 |
| Finances | 1 |
| General | 4 |
| Industry | 1 |
| Labor law | 1 |
| Microsoft | 1 |
| Waste management | 1 |