The flight crew oxygen system consists of an oxygen cylinder, valves, indicating components, distribution tubing and crew oxygen mask/regulator.机组氧气系统包括:A.氧气瓶.B活门.C.显示部件D.分配导管,机组氧气面罩/调节器.
A.A
B.B
C.以上都是
D.D
正确答案是C
The flight crew oxygen system consists of an oxygen cylinder, valves, indicating components, distribution tubing and crew oxygen mask/regulator.机组氧气系统包括:A.氧气瓶.B活门.C.显示部件D.分配导管,机组氧气面罩/调节器.
A.A
B.B
C.以上都是
D.D
正确答案是C