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| terugwaartse blokkering | |||
| control de grupo: 25 phrases in 11 subjects |
| Chemistry | 1 |
| Communications | 3 |
| Finances | 4 |
| General | 6 |
| Immigration and citizenship | 1 |
| Mechanic engineering | 2 |
| Medical | 3 |
| Metallurgy | 1 |
| Microsoft | 1 |
| Pharmacy and pharmacology | 2 |
| Social science | 1 |