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blanket order; approval plan; publisher-based acquisition plan; subject-based acquisitions plan |
数 订购 : 18 phrases in 10 subjects |
Advertising | 1 |
Aviation | 2 |
Business | 4 |
Commerce | 1 |
Economy | 3 |
Electronics | 2 |
Planning | 1 |
Programming | 1 |
Shipbuilding | 1 |
Technology | 2 |