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标号码: 28 phrases in 13 subjects |
Automobiles | 2 |
Aviation | 5 |
Communications | 1 |
Cultural studies | 1 |
Economy | 1 |
Electronics | 1 |
Finances | 1 |
Information technology | 2 |
International trade | 2 |
Librarianship | 3 |
Securities | 1 |
Technology | 6 |
Telecommunications | 2 |