A、 A hard landing may be the result of shock loading of the engine.
B、 Shock loading of an engine may result in a heavy landing.
C、 A heavy landing can cause shock loading of the engine.
答案：C
A、 A hard landing may be the result of shock loading of the engine.
B、 Shock loading of an engine may result in a heavy landing.
C、 A heavy landing can cause shock loading of the engine.
答案：C
A. Each electrical system is identified by a code.
B. Each code of electrical system is identified.
C. Each system is identified by an electrical code.
A. The Abnormal Procedures Section shall include checklist of operation sequence indicating the result of important operations to ensure safety.
B. The Abnormal Procedures Section shall include a checklist as the attachment indicating the sequence of operations when safety is critical.
C. The Abnormal Procedures Section shall include, at the beginning, a check list with regard to order of action when sequence is essential to safety.
A. Get a sample of hydraulic fluid.
B. Scavenge the hydraulic fluid.
C. Service the hydraulic reservoirs.
A. 飞行员操作手册的本节应描述飞机的方式，该方式应是制造商认为合理且能为飞行员提供有效的信息。
B. 飞行员操作手册的本节应以制造商认为对最有可能操作飞机的飞行员来说最能提供有效信息的方式来描述飞机。
C. 飞行员操作手册的本节内容应以合理的方式描述飞机，且是制造商认为最能为飞行员提供有效信息的。
A. 组合室是一个带有外壳和内套筒的圆柱状管路组件。
B. 混合室是一个带有外包装和内衬的圆柱状管路组件。
C. 混合室是一个带有外壳和内套筒的圆柱状管路组件。
A. Clean all lint, dust and debris from the ventilation holes located on the aft side of the captain＇s primary flight, navigation, and center lower engine display units.
B. Clean the vent holes behind the captain＇s primary flight, navigation and lower middle engine display units which are blocked by lint, dust and debris.
C. The captain＇s primary flight, navigation, and center lower engine display units must be cleaned since the ventilation holes behind them are clogged by lint, dust and debris.
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. Before drill the hole, make sure that the point of the drill head is sharp.
B. Prior to drill the hole, make sure that the point of the drill bit is sharp.
C. Before you make the hole, make sure that the point of the drill bit is sharp.
A. 座椅锁定高度装置控制了座椅高度。
B. 座椅长度锁装置控制座椅长度。
C. 座椅高度锁机械装置控制座椅高度。
A. 配电系统包括通风沟、阀门、滑轨、热交换器、操纵装置等项目。不包括使用系统的供应阀。
B. 分配系统包括管道、阀门、作动筒、热交换器、控制器等。不包括输往用户系统的供应阀。
C. 分布系统包括排风管道、阀门、制动弹簧、热交换器、控制器等项目。不包括使用系统的供应阀。
