根据冰雹的形成条件，分析并判定下列哪些情况是正确的1 强烈雷暴含有大量冰雹，普通雷暴含有少量冰雹；
2 在具有强上升气流和大水滴的雷暴中常能出现大冰雹； 3 在雷暴云内的任何一个高度上都有可能发现冰雹，但在云体外的晴空中不会有冰雹； 4 通常情况下，冰雹是在雷暴的成熟阶段形成的； 5 雹块可能被向上或向外抛出雷暴云，有时可达几千米远。

（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?

判断正误，即使在机翼前缘和机翼前上表面有少量的霜，冰，雪或雪水，也可能对由失速保护系统提供的失速速度，失速特征以及失速保护产生不利影响，从而可能导致起飞时失去控制。Even small amounts of frost, ice, snow or slush on the wing leading edges and forward upper wing surface may adversely change the stall speeds, stall characteristics and the protection provided by the stall protection system, which may result in loss of control on take-off.

判断正误True or False：ACSC工作通道显示在EICAS上。The active ACSC channel is displayed on EICAS.

哪项最好地描述了EICAS上显示的滑油压力指示？Which statement best describes oil pressure indication shown on EICAS?

A. 滑油压力模拟表只显示在状态页上 Oil pressure analog gauges are only presented on the status page

B. 滑油压力只显示为数字读数 oil pressure is only displayed as a digital readout

C. 当滑油压力正常且发动机运行中压力模拟表不显示 pressure analog gauges are not shown with oil pressure normal and engines operating

D. 滑油压力模拟表只在飞行时显示 oil pressure analog gauges are only presented in flight.

（METAR ZUUU 0100Z 15003MPS 3000 -RA OVC040 17/14 Q967 =METAR ZBAA 0200Z 24006G12MPS
CAVOK 28/20 Q992 =METAR ZSSS 0300Z VRB02MPS 2500 BR BKN050 M04/M08 Q1012 BECMG FM0430 36005MPS 5000 =）哪一个台报告的风速最大

A. ZBAA

B. ZUUU

C. ZSSS

当出现TA 告警信息时，打开飞机所有外部灯光，将距离环范围调大，密切监控发展趋势，尽快减小上升或下降速率，监控飞行员注意向外观察，询问ATC。When the TA alert comes out, turn on all external lights, increase the scale of the range, monitor the evolution tendency carefully, and reduce the rate of climb or descent as soon as possible. PM monitors the outside and asks ATC for traffic situation.

左发反推由下列哪个作动：The left engine thrust reverser is actuated by:

A. 液压系统1 Hydraulic system 1

B. 液压系统2 Hydraulic system 2

C. 液压系统3 Hydraulic system 3

D. 气源压力 Pneumatic pressure

机翼防冰接通时，N2 RPM 指示器会显示？What will the N2 RPM Indicators display with wing anti-ice selected on?

A. 琥珀色弧从0% to 60% RPM 。An amber arc from 0% to 60% RPM.

B. 白色弧从0% to 77% RPM 。An white arc from 0% to 77% RPM.

C. 保持绿色。Remain green.

D. 短暂保持绿色然后完全转成琥珀色。Remain green momentarily then turn completely amber.

判断正误True or False:地面扰流板只能在地面放出，作为地面减升功能的一部分。The ground spoilers only deploy on the ground as part of the GLD function.

如果对飞机能否安全着陆有怀疑，或在目视盘旋的同时失去了目视参考物，则应执行复飞程序。If there is a doubt as to whether the aircraft can land safely, or if visual reference is lost while visually circling, a missed approach procedure should be performed.