作业 计划 : 85 phrases in 20 subjects |
Agriculture | 6 |
Animal husbandry | 1 |
Automobiles | 2 |
Aviation | 20 |
Bridge construction | 2 |
Business | 3 |
Commerce | 2 |
Communications | 1 |
Earth sciences | 1 |
Economy | 6 |
Electronics | 2 |
International trade | 2 |
Management | 5 |
Name of organization | 4 |
Navigation | 1 |
Oil / petroleum | 1 |
Planning | 6 |
Rail transport | 1 |
Shipbuilding | 1 |
Technology | 18 |