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| envió solapado; U2 | |||
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N2 : 33 phrases in 9 subjects |
| Chemistry | 6 |
| Environment | 4 |
| Food industry | 7 |
| Health care | 2 |
| Human rights activism | 4 |
| Law | 4 |
| Statistics | 3 |
| Telegraphy | 1 |
| Transport | 2 |
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