建议在等待过程中尽量使用（ ） 方式，以加强对飞机的监控并降低机组的工作负荷。It is advisable to use the ( ) mode as much as possible during the holding process so as to enhance the monitoring on the aircraft and reduce the crew＇s workload.

(案例分析)某机组执行克拉玛依至阿克苏航班，由于乌鲁木齐区调指挥下降高度时机偏晚，当联系上阿克苏塔台时，此时进近的飞机都在减速调整落地间隔（阿克苏机场沥青道面且没有快速脱离道，落地后需滑行至跑道端掉头后脱离跑道），塔台指挥比较繁忙，机组连续呼叫申请下降高度而无应答，此时机组听到部分指令：“下场压高度1200米，起始点报。”当时飞机正飞向起始进近定位点，限制高度也是1200米。机组立刻调整高度开始下降，并同时向塔台证实指令。请问，机组操作是否正确？如果是你，应该如何处置？ （cases analysis）Once some crew performed flight from Karamay to Aksu. Because the timing of commanding to descent in Urumqi area was relatively late, and when crew contacting with Aksu tower, other aircraft performing approach were decelerating and adjusting landing separation (Aksu airport equipped with asphalt pavement without rapid exit way, thus aircraft need to taxi to the end of RWY and get rid of RWY after landing), the tower guidance was relatively busy, and crew continuously called ATC and applied for descent with no response. Meanwhile, crew heard some instructions: descend QFE 1200M, report at the IF. At this time, aircraft was flying directly to IF with an altitude limit of 1200m. Crew adjusted altitude and initiated to descend and ask for confirmation of instructions from tower control as well. Was is correct regarding crew operation? If you were they, how would you handle with it?

发动机启动（地面）：对于第一次和第二次启动，启动机接通最长的时间是多少？Engine Start (Ground): For the first and second time, the maximum time for starting engine is:

A. 50秒 50 sec

B. 70秒 70 sec

C. 90秒 90 sec

D. 110秒 110 sec

在对流运动的初期形成的云是＿＿

A. 碎层云

B. 浓积云

C. 淡积云

昼间绕飞雷雨只允许从云下目视绕飞，但航空器与云底的垂直距离不得少于（）米；飞行真实高度在平原、丘陵地区不得低于300米，在山区不得低于600米。

A. 300

B. 400

C. 600

单发失效过程中，油门杆在爬升卡位，应急推力设置为：During a single engine failure, with thrust levers in CLIMB detents, the emergency thrust setting is:

A. 减推力flex power

B. 最大连续推力（MCT）maximum continuous thrust(MCT)

C. 最大推力MAX POWER

D. 进近推力APR power

EGPWS方式7在无线电高度（ ）英尺以内监控风切变情况。EGPWS Mode 7 monitors for windshear conditions between radio altitudes of （ ）feet.

A. 0-1000

B. 10-1500

C. 0-1500

D. 100-1500

热雷暴具有下述何种特点＿＿

A. 云底高度低

B. 范围小，孤立分散

C. 有强烈闪电，移动迅速

尽量避开雷雨云顶部下风处的卷云及卷层云。尽管雷达显示器上几乎未显示任何回波信号，但这些云层可能在积雨云顶部（）。

A. 形成并且可能含有冰雹；

B. 形成较为严重的晴空颠簸；

C. 出现较强的放电。

STEERING DEGRADED状态信息 (白色)含义是？

A. 转弯性能降级

B. 前轮转弯关

C. 起落架不一致

D. 刹车压力低

跑道上的关闭标识和滑行道上的关闭标识，分别是什么颜色？

A. 红色；黄色

B. 黄色；白色

C. 白色；白色

D. 白色；黄色