CRJ900正常检查单依据是发动机起动前（）的正常程序。The checklists are based on the normal procedure of （ ） before engine start.

发动机在 V1 或 V1 后失效，起始爬升阶段，在达到正上升率后，收轮。保持速度 ( )爬升直至加速高度。When engine Failure at/after V1，retract the landing gear after attaining a positive rate of
climb. maintain a minimum of ( )speed to climb to the acceleration altitude.

A. V1

B. Vr

C. V2

D. V2+10

判断正误true or false：自动飞行控制系统（AFCS）提供一个双轴、双通道、失效被动保护的自动驾驶（AP）。The Automatic Flight Control System (AFCS) provides a two axes, dual channel, fail-passive autopilot (AP)

液压油量显示白色代表（ )。 The white readout of hydraulic quantity indicates that（）

A. 液压油＜45%, 或＞85%。 Hydraulic quantity＜45% or＞85%

B. 液压油＞85% 。 Hydraulic quantity＞85%

C. 液压油＜45%。 Hydraulic quantity＜45%

D. 液压油＜85% 。 Hydraulic quantity＜85%

（案例分析）2020年1月27日，福州航空B737-800执行三亚-赣州-哈尔滨航班。在未经机务短停检查和放行情况下完成赣州-哈尔滨航段运行。飞行机组关舱门前未确认飞机维修放行签署情况；滑行阶段发现问题后未滑回，而是通过塔台管制员询问维修放行人员信息，擅自代填技术记录本后起飞。请分析该机组存在的问题。（Cases analysis）On January 27th, 2020, Fuzhou Airlines B737-800 executed the Sanya - Ganzhou - Harbin flight, and they had completed the Ganzhou-Hharbin segment operation without aircraft short-stop maintenance inspection and release.The flight crew did not confirm the signature of the aircraft maintenance release before closing the cabin door;During the taxiing phase, the crew did not taxi back after finding the problem, instead they asked the maintenance and release personnel information through the tower controller, and then took off after filling in the technical record book by themselves without authorization.Please analyze the problems this crew has.

飞机由冷气团一侧穿过暖锋飞行时，飞机的升限

A. 变化不大

B. 将要增大

C. 将要减小

民用航空器必须具有民航局颁发的＿＿方可飞行

A. 适航证；

B. 经营许可证；

C. 机场使用许可证

正常引气构型状态下，机翼防冰交输引气活门在( )位置under normal bleed configuration，WING A/I BLEED valve is in ( ) position.

A. FROM LEFT

B. NORMAL

C. FROM RIGHT

离地仰角大红色事件为主轮离地时刻，俯仰角超过（ ）

A. 8°

B. 9°

C. 10°

D. 11.2°

某种颠簸会暂时导致飞机高度或姿态的轻微、无规则变化，飞行员在报告这种颠簸时应将其报告
为

A. 轻度风向转换

B. 中度颠簸

C. 轻度颠簸

在锋面两侧，下面何种气象要素的差异最大＿＿

A. 风速

B. 气压

C. 气温