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composite system | |||
combination system |
sistema mixto : 20 phrases in 11 subjects |
Agriculture | 4 |
Communications | 2 |
Earth sciences | 1 |
Electronics | 4 |
Insurance | 1 |
Labor law | 2 |
Materials science | 1 |
Mechanic engineering | 1 |
Planning | 1 |
Statistics | 1 |
Water resources | 2 |