Thebiggestsafetythreatfacingairlinestodaymaynotbeamanwi...
问题详情：Thebiggestsafetythreatfacingairlinestodaymaynotbeamanwithagunbutthemanwiththeportablecomputerinbusinessclass.Inthelast25years,pilotshavereportedwellover200incidentsthat(25)__________havebeenca...