Flight surfaces are the structure of removable airfoils attached to the wing including items such as ailerons, flaps, spoilers, tabs, drag and balancing devices, etc.

A. “数据传输”或“自动呼叫”系统，如选择呼叫，利用脉冲编码的传输来呈现信息.

B. “数据传输”或“自动呼叫”系统，如选择呼叫，用脉冲被编码的传输来呈现信息.

C. 在“数据传输”或“自动呼叫”系统中，如选择呼叫，信息的传递是通过用脉冲被编码实现的。

A. 描述飞机起落架时，应说明应急展开系统。

B. 描述飞机起落架时，应描述起落架应急放出系统。

C. 描述飞机起落架时，应说明应急逃生系统。

A. 确定寿命有限的部件状态时需要使用一些特殊技术。

B. 只有那些有特殊授权的人员才能确定时寿件的状态。

C. 确定时寿件的状态用到了一些特别的技术。

A. 注释应该在简化、缩短文章或使文章更易于理解时被使用。

B. 只要可以简化、缩短文本或使文本更易于理解，都应使用插图。

C. 缩略语应该用在所有需要简化、缩短文章或使文章易于理解的时候。

A. 禁止在油箱周围吸烟。

B. 告诉所有员工禁止在油箱处吸烟。

C. 告诉所有人员不要在油箱附近吸烟。

A. Do this procedure again.

B. Repeat this procedure.

C. Do this procedure two times.

A. If an annunciator panel TRANSIT light fails to illuminate while the corresponding device is in motion, then this light must be considered inoperative.

B. When related device is in operation and if annunciator panel TRANSIT light comes on, so this light does not work.

C. The light is considered to be available if the annunciator panel TRANSIT light goes off when the related device is in motion.

A. If you use folding page, the page number must be invisible when folding.

B. The page number must be viewing if you fold the page.

C. If folded pages are used, the page number must be visible when folded.

A. Hoist the outflow valve toggle switch in the OPEN position until the outflow valve position indicator shows FULL OPEN.

B. Hoist the outflow valve trigger switch in the OPEN position until the outflow valve position indicator shows FULL OPEN.

C. Hold the outflow valve toggle switch in the OPEN position until the outflow valve position indicator shows FULL OPEN.

A. The operator＇s maintencance organization must make sure that each aircraft has all inspection records.

B. Make sure that the required repair/alteration/inspection documents of each aircraft must be kept by maintenance organization of the operator.

C. Ensure that the operator＇s maintenance organization has retained the required maintenance/alteration/inspection records for each aircraft.