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| 研究计划 | |||
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study program : 14 phrases in 9 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Business | 1 |
| China | 1 |
| Earth sciences | 5 |
| Ecology | 1 |
| International trade | 2 |
| Space | 1 |
| United States | 1 |
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