SFECUs(缝翼/襟翼电子控制组件)以下面的优先顺序中的四个模式中的一个进行操纵: The SFECUs operate in one of four modes in the following priority:1. 人工配平Manual trim2. 自动驾驶仪配平Autopilot trim3. 自动配平Auto trim4. 马赫配平Mach trim

CABIN ALT座舱高度警戒信息在座舱高度大于或等于( )时显示。The CABIN ALT caution message will be shown when the cabin altitude greater than or equal to（ ）.

A. 8,000 feet

B. 8,500 feet

C. 10,000 ft

D. 14,000ft

CCAR-121“仪表和设备要求”中规定，按照CCAR-121部规章实施运行的飞机所配备的机载近地警告系统（ ）具备无线电高度报告功能。

A. 可以

B. 不可以

C. 应当

D. 视情

驾驶舱跟外部勤务面板之间的CALL功能是靠以下什么提供A CALL function between the flight deck and the external service panel is provided by the:

A. SERV电门SERV switch

B. Transmit switch 发送电门

C. 驾驶舱扩音器电门Flight deck speaker switch

D. MECH CALL 电门MECH CALL switchlight

10000ft以下速度大橙色事件为表指高度10000ft以下速度超过（）

A. 250节，持续3秒

B. 260节，持续3秒

C. 270节，持续3秒

D. 280节，持续3秒

冻雨是怎么形成的

A. 雨滴穿过零度以下的大气层

B. 雨滴穿过零度以上的大气层

C. 雪粒穿过零度一下的大气层

主电瓶输出电压为：The output voltage of main battery is:

A. 24VDC，17安培/小时 24 VDC rated at 17 ampere hours

B. 24VDC，25安培/小时 24 VDC rated at 25 ampere hours

C. 24VDC，30安培/小时 24 VDC rated at 30 ampere hours

D. 24VDC，43安培/小时 24 VDC rated at 43 ampere hours

气象上把气温垂直递减率等于零（即γ= 0）的气层称为

A. 逆温层

B. 等温层

C. 不稳定气层

雷达天线罩关闭时，气象雷达危险区距天线（）With radome closed, the weather radar hazard area is（）from the antenna

A. 60 m.

B. 6 m

C. 0.6 m

D. 0.06 m

国际、地区运行，在RVSM区域在ATC未给出指令时，执行紧急下降程序，应左或右转航向（ ）度，飞出（ ）海浬，平行原航路飞行后再执行下降程序。For international, regional operation, If it is an emergency descent in RVSM airspace, before ATC issue related instructions, make （ ） turn to the left or right of current flight path and fly （ ）nm on new heading, fly parallel to the original route, then execute emergency descent.

A. 90; 15

B. 90; 20

C. 30; 15

D. 30; 20

（案例分析）某航CRJ900在进近过程中，高度30英尺，突然跑道上闯入另外一架飞机，机组决定复飞，副驾驶操纵飞机，机长立即收到襟翼8度，造成飞机突然下沉接地，副驾驶此刻加油门至复飞推力，开始增加姿态复飞，造成机尾擦地。请分析以上机组执行任务复飞动作是否正确以及可能造成擦机尾的原因。(Case analysis) During the approach of one Airline＇s CRJ900 , at 30ft，there＇s suddenly another aircraft incursion the runway, the crew decided to go-around, the copilot took control of the aircraft, and the captain immediately retracted flaps to 8, causing the aircraft suddenly sinking to touch the ground. The copilot advanced the thrust to T0/GA at this moment and started to increase the go-around attitude, causing the tail strike.
Please analyze whether the flight crews perform the go-around maneuver correctly and the reasons that might cause the tail strike.