单选题
飞机的气源系统被增压来自:The aircraft’s pneumatic system can be pressurized from:
A
发动机6级或10级引气。Engine 6th or 10th stage bleeds.
B
APU
C
外接高压气源External high pressure.
D
以上全部 All of the above.
答案解析
正确答案:D
题目纠错
飞机试题CRJ900题库练习
