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temps d établissement : 28 phrases in 11 subjects |
Communications | 5 |
Earth sciences | 1 |
Education | 2 |
Electronics | 12 |
General | 1 |
Government, administration and public services | 1 |
Information technology | 1 |
Mechanic engineering | 1 |
Metallurgy | 1 |
Telecommunications | 2 |
Telegraphy | 1 |