![](https://lstatic.shangxueba.com/jiandati/pc/images/pc_jdt_tittleico.png)
B747-400型飞机的翼展为:
A.48.35m
B.35.65m
C.64.31m
D.59.64m
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_q_ckda.png)
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_panel_vip.png)
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_q_wyda.png)
- · 有5位网友选择 C,占比55.56%
- · 有2位网友选择 D,占比22.22%
- · 有1位网友选择 B,占比11.11%
- · 有1位网友选择 A,占比11.11%
A.48.35m
B.35.65m
C.64.31m
D.59.64m
B、The flight engineer to be properly certificated and qualified, but also at least one other flight crewmember must be 2qualified and certified to perform flight engineer duties.
C、At least one other flight crewmember to be qualified to perform flight engineer duties, but a certificate is not required.
B、DEL WJ\*.BAK
C、ERASE \WJ\*.BAK
D、ERASE ..\*.BAK
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