飞机导航系统向机组人员提供飞行所需的数据，并满足最适当的安全要求。
A.The aircraft navigation systems provide the flight, which is required by the crew, and meet the most provisionally safety requirements. B.The aircraft navigation systems provide the flight, which is required by the crew, and meet the most appropriate safety requirements. C.The aircraft navigation systems provide the crew with the data required for flight within the most appropriate safety requirements.正确答案C
