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asse di emissione : 30 phrases in 15 subjects |
| Chemistry | 1 |
| Communications | 3 |
| Earth sciences | 1 |
| Ecology | 2 |
| Economy | 2 |
| Electronics | 3 |
| Energy industry | 3 |
| Environment | 3 |
| Finances | 1 |
| Law | 2 |
| Life sciences | 1 |
| Medical | 4 |
| Microsoft | 2 |
| Natural sciences | 1 |
| Transport | 1 |
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