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混合 I 类
securit.
hybrid Tier I
混 合 I 类:
40 phrases
in 17 subjects
Agriculture
3
Animal husbandry
3
Chemistry
3
Computer networks
1
Construction
1
Earth sciences
2
Electronics
1
General
2
Geology
2
Information technology
1
Librarianship
1
Metallurgy
5
Oil / petroleum
3
Pharmacology
3
Technology
7
United Nations
1
Water resources
1
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