判断正误true or false:自动模式转换到半坡度发生在31,600英尺.The automatic mode transition to Half Bank will occur at 31,600 feet.

可通过按压哪个电门使左发液压关闭活门被关闭？The left engine hydraulic shutoff valve is motored closed by pressing which switchlights?

A. 主警告MASTER WARNING

B. 液压关断活门失效在安全关闭位Hydraulic shutoff valve is fail-safe to the closed position

C. 左发火警按压或左液压关断活门LH ENG FIRE PUSH or L HYD SOV

D. 右发火警按压或右液压关断活门RH ENG FIRE PUSH or R HYD SOV

（案例分析）2017年9月3日，某机组驾驶飞机执行扎兰屯-海拉尔航班，在海拉尔最后进近阶段副驾驶接到管制指令的同时，机长下达指令“打铃，放轮，襟翼30”，副驾驶接到机长指令“打铃，放轮，襟翼30”后，由于疏忽，在场高1748ft选择45°襟翼，但未放下起落架手柄，机组发现起落架未放下后复飞。二次进近正常落地。请问机组可能存在哪些问题？(Case Analysis) On September 3, 2017, a certain crew flew the aircraft to carry out the Zhalantun-Hailar flight. At the same time as the copilot received the control instruction during the final approach phase of Hailar, the captain gave the instruction "Ring, gear down, and flaps 30”, after receiving the command from the captain “Ring, gear down, and flaps 30”, the copilot, due to negligence, selected the flaps 45° at 1748ft AGL, but the landing gear lever was not selected down. The flight crew found the abnormal situation of landing gear and excuted a missed approach. The second approach was made and ended with a normal landing. What possible problems may exist shown by the flight crew?

在下列何种状态下能产生积状云、阵雨及云和降水区外较好的能见度

A. 稳定潮湿的空气和地形抬升

B. 不稳定、潮湿的空气和地形抬升

C. 不稳定、潮湿的空气和平缓的地形

飞机在比标准大气冷的空气中飞行时，气压高度表所示高度将（ ）实际飞行高度

A. 等于

B. 低于

C. 高于

在重要天气预告图上，“CAT”表示

A. 碧空

B. 晴空颠簸

C. 满天云

判断正误true or false: IAPS OVERTEMP状态信息（白色）表明已经探测到一个综合电子处理系统超温状态。IAPS OVERTEMP status (white) indicates that an IAPS overtemperature condition has been detected.

对于50英尺以下的复飞，应该什么时候选择襟翼8？For the go-around below 50 ft, when should you select flap 8?

A. 按压TO/GA电门确保复飞推力 Push TO/GA switch, and ensure that go-around thrust has been set

B. 飞机状态稳定且不下沉 ensuring stable aircraft status and descent is arrested

C. 速度不小于Vref speed ≥ Vref

D. 高度不低于50ft altitude ≥ 50ft

当航班的飞行航段上任一点包含有距离海岸线水平距离超过＿＿海里的水上运行时，称为跨水飞行。

A. 30

B. 50

C. 80

D. 100

在卫星云图上，根据下述何种现象可以区别云和高山积雪

A. 高山积雪有树枝状分支，而云却没有

B. 高山积雪有纹理和暗影，而云却没有

C. 高山积雪常显白色，而云却常显灰白色

机场上吹西风时，飞机起飞着陆的最好方向是＿＿

A. 由西向东；

B. 由东向西；

C. 由北朝南