This figure shows the structure of the system.

A. 这些测试可能需要额外的地面支持设备，应比操作测试更具体和详细。

B. 这些试验可能需要增加地面支持设备，应比操作测试更专业和详实。

C. 这些测试可能需要提供专门的地面支撑设备，应比功能试验更特殊和详细。

A. 应使用比例尺图对飞机的总体布局进行说明，该比例尺图由平面图、侧视图和正面视图组成，并在单页上以垂直顺序展示。

B. 应使用气动布局图对飞机总体安排进行说明，说明内容包括计划、侧面图和正面图，并以垂直顺序在单页上列出。

C. 应在单页上以横向顺序的呈现方式对飞机总体布局和示意图进行说明，包括平面图、侧视图和正面视图。

A. 将牵引杆连接到车辆上。

B. 使用车辆断开牵引杆。

C. 将牵引杆从车辆端脱开。

A. This Specification was issued by the General Aviation Manufacturers Association

B. This Specification was revised by the General Aviation Manufacturers Association

C. This Specification was compiled by the General Aviation Manufacturers Association

A. 环境系统包括的那些装置和部件，提供增压、加热、冷却、湿度控制和过滤，并对压力密封的机身区域的通风空气进行处理。

B. 通风系统包括的装置和部件可以用于加压、加热、冷却，湿度控制、处理空气，从而为压力密封内区域通风。

C. 循环系统包括那些装置和部件，提供释压、加热、冷却、温度控制、压缩和处理空气，来为压边封严条内的区域通风。

A. The power required to run an engine, in flight, at the lowest speed that will ensure satisfactory engine operation and airplane handling system.

B. The power required to run an engine, in flight, at the lowest speed that will ensure satisfactory engine operation and airplane handling characteristics.

C. The power required to run an engine, in flight, at the lowest speed that will ensure correct engine operation and airplane handling characteristics.

A. 可用燃油是指飞机飞行中使用的燃油。

B. 可用燃油是指可供飞行计划使用的燃油。

C. 飞行计划使用的燃油包含可用燃油。

A. A blocked oil jet cannot enhance performance.

B. Incorrect operation is caused by a blocked oil tank.

C. A blocked oil jet can cause incorrect operation.

A. In an emergency, the one-shot battery supplies DC power.

B. The one-act battery supplies AC power during emergencies.

C. The one-side battery provides DC power during emergency situations.