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proving ring | |||
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proving ring |
校 验环 : 34 phrases in 12 subjects |
Automobiles | 2 |
Computers | 2 |
Electronics | 12 |
Geophysics | 1 |
Information technology | 3 |
Mathematics | 1 |
Metallurgy | 2 |
Multimedia | 1 |
Project management | 2 |
Space | 1 |
Technology | 5 |
Telecommunications | 2 |