单选题Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.AFederal Aviation AdministrationBCorps of EngineersCNational Fire Protection AssociationDNational Transportation Safety Board
单选题
Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.
A
Federal Aviation Administration
B
Corps of Engineers
C
National Fire Protection Association
D
National Transportation Safety Board
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