2312.Do not exceed this speed or Mach Number except in smooth air and then only with caution.

A. Move any of the four bolts.

B. Remove one of the four bolts.

C. Remove each of the four bolts.

A. Contamination of the grease can cause damage to the bearing.

B. Contamination of the oil can cause damage to the shaft.

C. Pollution of the grease can cause damage to the axle.

A. APU start attempts are inhibited above 25,000 feet with both busses off,only one start attempt is allowed below 25000 feet.

B. With both busses power off,APU start attempts is recommended above 25000 feet and only one start could be accepted below 25,000 feet.

C. APU start attempts are notrecommended above 25,000 feet.With both busses off,only one startattempt is recommended below 25,000 feet."

A. 复合板材使搭接处更坚固。

B. 加强板使搭接接头更坚固。

C. 经过再次强化的板材使搭接凸缘承力更强。

A. 贴标签于章节编号或标题。

B. 在标签上标注章节号或标题。

C. 标记所有标签以及章节编号或标题。

A. Another important function of lubricating oil is to protect the corroded metal surfaces.

B. Another important task of the oil is to protect the metal surfaces from corrosion.

C. Preventing the metal surface from further corrosion is the other essential function of the lube.

A. Elevator move is limited by the move of the elevator power control units.

B. Elevator trip is limited by the move of the elevator power control units.

C. Elevator travel is limited by the stroke of the elevator power control units.

A. 封面标题和适当的飞机内容应首先在手册的封面或书脊(或两者)上表现出来。

B. 封面标题和适用的飞机设计应在手册的封面或书脊(或两者)上永久显示。

C. 封面标题和适用的飞机名称应突出显示在手册的封面或书脊(或两者)上。

A. That portion of the system is used to control the direction of movement of the aircraft off the ground,including items such as shock strut,controls,bogie swivel unlock,etc.

B. That portion of the system is used to control the direction of movement of the aircraft on the ground,including items such as skid blocks,controls,bogie swivel unlock,etc.

C. That portion of the system is used to control the direction of movement of the aircraft on the ground,including items such as actuating cylinders,controls,bogie swivel unlock,etc.

A. When wheel is dried,clean with the compressed air.

B. When wheel is cleaned,dry with the compressed air.

C. When wheel is cleaned,dry with the impressed air.