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| 调制试验; 预备试验 | |||
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preparation test : 12 phrases in 8 subjects |
| Aviation | 1 |
| Business | 1 |
| Drilling | 1 |
| Engineering geology | 1 |
| General | 1 |
| Plastics | 2 |
| Space | 1 |
| Technology | 4 |
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