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| 选择 叫: 40 phrases in 10 subjects |
| Aviation | 4 |
| Bridge card game | 1 |
| Computer networks | 2 |
| Electronics | 9 |
| General | 2 |
| Information technology | 3 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 11 |
| Telecommunications | 6 |
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