2474. Make sure that the stopwatch indication is between 2 and 4 minutes

A. 燃油在燃烧室内燃烧

B. 燃油通过喷嘴进入雾化器

C. 燃油通过雾化器进入燃烧

A. 通过侧面油箱的门获取控制组件。

B. 通过侧面油箱的孔触摸控制组件。

C. 通过油箱侧面的开口接近控制组件。

A. 加载弹簧的张力。

B. 释放弹簧的张力。

C. 调整弹簧的伸缩。

A. 机身上有三个顶升点

B. 机体上有三个基准点

C. 机腹上有三个插孔

A. More sophisticated detectors provide a digital output in parts per million of carbon monoxide present or illuminate a light or an audible alarm sounds.

B. Multiple precise detectors provide a digital output to light a light or sound a warning sound in areas where carbon monoxide levels exceed limits.

C. Multiple physical detectors provide a partial digital output of carbon monoxide content per 100000 parts, either lighting up one or sounding a warning tone.

A. If necessary, use of the first officer＇s control column change the captain＇s control column is acceptable, provided that this substitution is maintained throughout the test .

B. If necessary, use of the first officer＇s control wheel instead of the captain＇s control wheel is acceptable, provided that this substitution is maintained throughout the test.

C. If necessary, use of the captain＇s control wheel instead of the first officer＇s control wheel is acceptable, provided that this substitution is maintained through the test.

A. Uncontrolled system or old equipment cause hydraulic fluid flow from hydraulic system A to B.

B. If you fail to operate the system control properly or the equipment is damaged, the hydraulic fluid will be transferred between hydraulic system A and B.

C. Flow of hydraulic fluid between hydraulic system A and B result in accidental operation of system controls or damaged equipment.

A. 本程序给出了不同的扭矩范围以及相应的规定

B. 本文件给出了不同的扭矩值和其适用的条件

C. 本程序给出了适用的差异扭矩值和条件。

A. If you change this repair procedure, get approval of the Design Authority.

B. Any alteration to this repair procedure must get verbal approval of the Design Authority.

C. The Design Authority is responsible for approving and changing the repair procedure.

A. Quickly turn on the oxygen system, the mask begins to supply oxygen.

B. Pull the oxygen mask with a sudden movement to start the flow of oxygen.

C. Suddenly start the oxygen supply system, the lake drops.