Only approved personnel must operate the brakes.

A. 这些ALIs 是强制性的，未经负责飞机型号证书的FAA 办公室或适用的监管机构的批准，不能更改或删除。

B. 这些ALIs 是指令性的，未经FAA办公室批准不得更改或删除。FAA办公室负责飞机型号证书，或发布适用的管理规章。

C. 这些ALIs 是非常必要的，任何更改或删除必须获得FAA办公室批准，或者其他可以颁发飞机型号证书的监管机构的批准。

A. Most material of the radar scope is fiberglass.

B. Most of the material in the radome is fiberglass.

C. Most of the material in the radar cap is fiberglass.

A. 在充气活门上的防尘螺帽被拆下来了，这样新鲜的空气源才能被连接到气门杆和螺套上，以打开充气阀门。

B. 在充气阀门上的可调节螺帽被拆除了，这样新鲜的空气源才能被连接到气门杆和螺套上，以打开充气阀门。

C. 充气阀门上的防尘帽被拆除，外接气源连接到阀门杆，旋转螺母被旋开以打开充气阀门。

A. Oil comes from the supply system to lubricate and cool internal components in the engine.

B. Oil coming from the scavenge system will supply lubrication and cooling for the internal components of the engine.

C. The oil supply system will give lubrication and cooling for the internal components of the engine.

A. Be careful not to get acid on your skin.

B. Do not get acid on your skin.

C. You must be careful to get acid on your skin.

A. A certificated pilot who owns or operates an airplane not used as an air carrier is authorized by FAR Part 43 to perform limited preventive maintenance on his airplane.

B. A certificated pilot who owns or operates an airplane that is not airworthy can perform limited predictive maintenance on his airplane authorized by FAR Part 43.

C. A licensed pilot authorized by FAR Part 43 who owns or operates an airplane not used to operate can perform time-limited maintenance on his airplane.

A. 这表明您可以安装一个替代的继电器。

B. 这表明您可以安装一个新的继电器。

C. 这表明您可以更换一个新的继电器。

A. 螺旋桨恒速机构故障。

B. 螺旋桨恒速机构被挡住了。

C. 螺旋桨恒速传动机构不在这个位置。

A. 查找损伤。

B. 看一下损伤。

C. 检查损伤。

A. 为了保证飞机的适航性，飞机被推荐了检查程序。

B. 推荐的检查方案随飞机一并交付，以保证其适航性。

C. 飞机交付了推荐的检查程序，以保持它们的适航性。