What are the indications that the engine starter has disengaged?
A.A.The fuel LOW PRESSURE lights extinguish with N1 RPM 56%
B.B.The start switch automatically returns to OFF, and the START VALVE OPEN light extinguishes
C.C.An immediate increase in the N1 indication due to closure of the compressor bleed valves
D.D.Start switch rotates to OFF and N2 RPM is stabilized (FUEL LOW PRESSURE extinguishes)
正确答案是B