If the RAT is retracted, slowly and fully extend the RAT and make sure that it does not touch other parts.

A. Grind the surface with a soft cloth after it becomes light.

B. Rub the surface with a soft cloth when it becomes brightness.

C. Polish the surface with a soft cloth until it becomes shiny.

A. 给连接在上述部件的锁控装置喷上防腐蚀剂。

B. 给连接在上述部件的锁控装置喷上防锈剂。

C. 给连接在上述部件的锁控装置喷上润滑剂。

A. Each Chapter or Section is to begin with a specific instruction of the system and its Operation and should be labeled “Description and Operation”.

B. A general description of the system begins with each Chapter or Section and its operation and should be labeled “Description and Operation”.

C. Each Chapter or Section is to start with a general description of the system and its operation and should be labeled “Description and Operation”.

A. 调整倾斜仪，直到气泡在中心。

B. 校准倾斜仪，直到旋钮在中心。

C. 调整倾斜仪，确认气泡在中心。

A. The power plant uses an air vent or propeller to produce power.

B. The power plant develops thrust either through the exhaust or through a propeller.

C. The power plant generates propulsion with the aid of the exhaust or a propeller.

A. Ignore the absence of contamination in the fuel sample and continue with the procedure.

B. Continue with the procedure if the fuel sample does not exhibit any contamination.

C. Proceed with the procedure regardless of any contamination found in the fuel sample.

A. If the brackets are not damaged, continue the procedure.

B. In the absence of damage to the brackets, recall the process.

C. When bracket damage occurs, recall the procedure.

A. Get a sample of hydraulic fluid.

B. Scavenge the hydraulic fluid.

C. Service the hydraulic reservoirs.

A. 盖子朝下的时候，是开关在开位的一种保护。

B. 封面在下面的时候，是开关在开位的保险。

C. 盖子朝下的时候，是开关在开位的保险。

A. 如果探头互相碰触，它们就会失去磁性。

B. 如果两个探头互相接触，它们就会失效。

C. 如果探针互相撞击，它们就会被磁化。