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| 电话业务 | |||
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phone service : 18 phrases in 10 subjects |
| Aviation | 1 |
| Computer networks | 1 |
| Corporate governance | 1 |
| Electronics | 3 |
| Information technology | 4 |
| Librarianship | 1 |
| Multimedia | 2 |
| Shipbuilding | 1 |
| Space | 2 |
| Telecommunications | 2 |
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