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最佳 点 : 31 phrases in 14 subjects |
| Automobiles | 1 |
| Business | 1 |
| Construction | 1 |
| Economy | 2 |
| Electric machinery | 1 |
| Electronics | 1 |
| International trade | 1 |
| Management | 1 |
| Nuclear physics | 1 |
| Solar power | 2 |
| Space | 5 |
| Technology | 12 |
| Textile industry | 1 |
| Water resources | 1 |
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