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| activity level | |||
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活动级 : 13 phrases in 9 subjects |
| Aviation | 1 |
| Name of organization | 3 |
| Nautical | 1 |
| Nursing | 1 |
| Project management | 1 |
| Reliability | 2 |
| Sports | 1 |
| Technology | 2 |
| Telecommunications | 1 |
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