在燃油加放油的过程中,不允许进行氧气勤务。
A.Filling with oxygen is not permitted during defueling and refueling. B.Servicing with oxygen is not allowed during refueling and defueling C.Servicing with oxygen is not prohibited during fueling and defueling.正确答案B
在燃油加放油的过程中,不允许进行氧气勤务。
A.Filling with oxygen is not permitted during defueling and refueling. B.Servicing with oxygen is not allowed during refueling and defueling C.Servicing with oxygen is not prohibited during fueling and defueling.正确答案B