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重复件 : 23 phrases in 12 subjects |
| Agriculture | 2 |
| Architecture | 2 |
| Automobiles | 3 |
| Business | 1 |
| China | 1 |
| Economy | 2 |
| Electronics | 3 |
| Information technology | 1 |
| Life sciences | 1 |
| Molecular genetics | 1 |
| Space | 2 |
| Technology | 4 |
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