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not optional |
не дополнительный: 73 phrases in 24 subjects |
Aviation | 2 |
Biology | 1 |
British usage, not spelling | 1 |
Commerce | 2 |
Computer networks | 1 |
Economy | 3 |
Electronics | 1 |
Finances | 1 |
General | 21 |
Information technology | 4 |
Insurance | 2 |
International transportation | 1 |
Law | 5 |
Makarov | 4 |
Mass media | 7 |
Mathematics | 1 |
Mechanic engineering | 1 |
Mining | 2 |
Patents | 3 |
Programming | 3 |
Scientific | 2 |
Securities | 1 |
Technology | 3 |
Telecommunications | 1 |