2331.That portion of the system which supports the nose of the aircraft while the aircraft is on the ground,including items such as shock struts,drag struts,doors,linkages,attach bolts,etc.

A. When installing the antenna,the arrows must be alignedand point forward.

B. When installing the radome,you must keep the arrow pointing forward.

C. When you install the antenna,the alignment arrow must point forward.

A. 手册建议您在气流良好的区域制备混合物。

B. 制造商建议您在气流良好的区域制备混合物。

C. 制造商强调您在气流良好的区域制备混合物。

A. When described the aircraft and its system,you should always use third people talking.

B. Generally,in describing the airplane or its system,third person wording should be used.

C. When you describing the airplane systems,third person mood shall be used.

A. A small child should sit in an unlimited seat.

B. A small child needs to sit in a seat with safety device.

C. A small child could sit in an adult seat.

A. 把返回文件放在安全的地方。

B. 把备份文件放在安全的地方。

C. 把备份文件放在安全的柜子中。

A. “飞机性能”中的每一项均应对与数据相关的重要条件进行说明。

B. 每一项飞机性能都包含对重要条件和数据的说明。

C. “飞机性能”中的每一条目均应对数据及其重要条件之间的关联性进行说明。

A. 不要改变路线的管道。

B. 不要改变管道的长度。

C. 不要改变管道的走向。

A. Water above the kitchen floor can seep in through small holes in the floor surface,invisible to the naked eye.

B. Eyes cannot see the vapor which may penetrate through small holes of the floor surface in the galley.

C. Moisture above the galley floor can go through small holes in the floor surface area and stay out of view.

A. Mach digit is the percent of true airspeed to the speed of sound.

B. Mach number is the ratio of true airspeed to the speed of sound.

C. Mach number is the proportion of real airspeed to the speed of light.

A. 解决急发故障问题。

B. 执行相关排故程序。

C. 对有问题的的程序进行修订。