组类II飞机上，新机型和新职位上的所要求的飞行经历时间是多少小时？ Group II aircraft, how many hours is required for new type and new duty?
A.15
B.20
C.25
正确答案是C
组类II飞机上，新机型和新职位上的所要求的飞行经历时间是多少小时？ Group II aircraft, how many hours is required for new type and new duty?
A.15
B.20
C.25
正确答案是C