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地位系统 |
Status System : 53 phrases in 14 subjects |
Automobiles | 4 |
Aviation | 17 |
Business | 2 |
Communications | 1 |
Computers | 1 |
Demography | 1 |
Earth sciences | 1 |
Economics | 1 |
Electronics | 15 |
Genetics | 1 |
Information technology | 1 |
Rail transport | 1 |
Space | 3 |
Technology | 4 |