若飞机在飞行中遭遇到微下击暴流，飞机的飞行性能常常是＿＿

判断正误True or False：当加油/放油控制面板的 POWER（电源）开关选择到 ON（开位），自动交输功能被抑制。When the POWER switch on refuel/defuel control panel is selected ON,AUTO fuel crossflow functionis inhibited。

按下防冰面板上的( )电门，可检查探头加热系统The probes heat system is checked by pressing the switch on the anti-ice panel

A. 左探头LH Probe

B. 右探头RH Probe

C. DET (TEST) ICE

D. 以上都不是None of the above

判断正误True or False: 发动机驱动泵（EDP）1A和2A在驾驶舱内没有对应的控制电门。There are no flight deck control switches for EDP 1A and EDP 2A.

(多选)DCU 进行数据处理后，将这些数据通过 ARINC 数据总线传递给______部件：（multiple-choice）The DCUs process and format information received then transmit the data onthe ARINC bus to ____.

A. EICAS 显示器，EICAS displays

B. 灯光驱动单元（LDU），Lamp driver unit (LDU)

C. 维修诊断计算机（MDC），Maintenance diagnostic computer (MDC)

D. 飞行数据记录器（FDR），Flight data recorder (FDR)

在彩色气象雷达上，显示红色的区域代表什么天气区

A. 大雨区

B. 中雨区

C. 雷暴和湍流区

风吹来时，那种局地风向不断改变，风速一阵大一阵小的现象称为

A. 阵风；

B. 风切变；

C. 风向不定

空中交通服务单位包括

A. 空中交通管制单位，飞行情报中心或者空中服务报告办公室

B. 空中交通管制单位，飞行情报中心

C. 空中交通管制单位，空中服务办公室

（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?

APU起动/停止电门上的AVAIL绿灯表明：The green AVAIL light in the APU start/stop switchlight means:

A. APU引气可用。APU bleed air is available.

B. APU能提供电源负载。APU is able to supply electrical loading.

C. APU在运转。APU is running.

D. APU自检测试已完成。APU BITE test is complete.

当你在北京首都机场落地滑跑过程中看到第一个红色中线灯，说明距跑道头大约还有多远？

A. 距跑道头约900米

B. 距跑道头约600米

C. 距跑道头约300米