单项选择题
A.控制成本、确保安全 B.安全第一、预防为主 C.以人为本、预防为主 D.质量与安全并重
A.空域规划和空中交通管制部门 B.飞行标准和航务管理部门 C.基建机场部门
A. Before leaving the harbour, all derricks must be stowed. B. After leaving the harbour, all derricks must be stowed fore and aft. C. Before leaving the harbour, all derricks must be stowed fore and aft. D. Before leaving the harbour, all heavy derricks must be stowed fore and aft.
A.民用机场须具备运行条件 B.民用机场须经当地省级人民政府批准 C.民用机场应当持有机场使用许可证 D.以上规定都不对
微信扫一扫,加关注免费搜题