At what Mach range does the subsonic flight range normally occur
2023-12-014. atpl 飞行原理
At what Mach range does the subsonic flight range normally occur?
A.Below .75 Mach.
B.From .75 to 1.20 Mach.
C.From 1.20 to 2.50 Mach.
正确答案是A
