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| sill floor; bottom level | |||
| background level | |||
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niveau de fond : 22 phrases in 10 subjects |
| Communications | 1 |
| Construction | 1 |
| Earth sciences | 2 |
| Electronics | 2 |
| Environment | 1 |
| Finances | 4 |
| General | 2 |
| Metallurgy | 4 |
| Natural resourses and wildlife conservation | 1 |
| Nuclear physics | 4 |
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