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calibration code | |||
checking code | |||
check code |
校验码 : 42 phrases in 12 subjects |
Automobiles | 2 |
Communications | 1 |
Computers | 1 |
Electronics | 5 |
Information technology | 5 |
Logistics | 1 |
Mathematics | 1 |
Metallurgy | 1 |
Project management | 1 |
Space | 7 |
Technology | 12 |
Telecommunications | 5 |