大学MOOC 航空服务英语(李黎)(贵州民族大学)1450409175 最新慕课完整章节测试答案
2. Civil Aviation Service
2.1 Ground service 单元测验
1、单选题:
Airports can be classified into the following types: _______.
选项:
A: A. commercial airport
B: B. military airport
C: C. general airport
D: D. All above
答案: 【 D. All above】点我阅读全文
