For in flight operations, power is supplied from an _________ mounted on each engine or from the APU driven ________.
A.TRU, unit B.IDG,generator C.GCU,engine D.BPCU, generator正确答案B
For in flight operations, power is supplied from an _________ mounted on each engine or from the APU driven ________.
A.TRU, unit B.IDG,generator C.GCU,engine D.BPCU, generator正确答案B