DRAG REQUIRED' FMC Advisory message appears in CDU. What does it mean?
A.A.Airspeed is 10 knots or more above FMC target speed or within 10 knots of VMO/MMO
B.B.Airspeed is 5 knots or more above FMC target speed or within 10 knots of VMO/MMO
C.C.Airspeed is 5 knots or more above FMC target speed or within 5 knots of VMO/MMO
D.D.Airspeed is 10 knots or more above FMC target speed or within 5 knots of VMO/MMO
正确答案是D