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| activitate | |||
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aktivity : 31 phrases in 9 subjects |
| Agriculture | 1 |
| Chemistry | 2 |
| Construction | 6 |
| Earth sciences | 1 |
| Economy | 3 |
| Environment | 7 |
| Health care | 4 |
| Microsoft | 6 |
| Physical sciences | 1 |
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