A、 Illustrations should be used when they will simplify, shorten or make the text easier to understand.
B、 When illustrations can simple, shorten or make the text easy for understanding, they may be used.
C、 Whenever diagrams can simple, shorten or make the content easy to understand, they could be used.
答案：A
A、 Illustrations should be used when they will simplify, shorten or make the text easier to understand.
B、 When illustrations can simple, shorten or make the text easy for understanding, they may be used.
C、 Whenever diagrams can simple, shorten or make the content easy to understand, they could be used.
答案：A
A. When describing the airplane＇s Engine, spark plug system shall be described.
B. When describing the airplane＇s Engine, starter system shall be described.
C. In the description of the airplane＇s Engine, ignition system shall be described.
A. “站点”是一个距参考基准面某个距离的位置。
B. “站位”指沿飞机机身的位置,以到基准面的距离来表示。
C. “站位”是飞机机翼上的一个位置，用与参考基准面的距离表示。
A. 勤务门指最开始用于为飞机系统和设备提供服务的外舱门。
B. 勤务门指主要用于对飞机系统和设备实施勤务时的接近门。
C. 勤务门即外舱门，主要用于为飞机系统和设备提供服务。
A. Detection is that portion of the fire protection system which is used to sense and indicate the presence of overheat, smoke, or fire, if furnished as manufacturer-designated standard equipment.
B. If specified as standard equipment by the manufacturer, such equipment is that portion of the fire protection system. Detection equipment includes systems for transmitting and indicating conditions of overheating, smoke or fire.
C. If the equipment is part of a fire protection system and is designated as standard equipment by the manufacturer, the detection equipment includes the sensing and indication of overheat, smoke or fire.
A. If the valve is the source of the fuel leak, discard the valve seals and install new ones.
B. If the fuel leaks out of the valve, reinstall the valve seals.
C. If the fuel leak flows towards the valve, discard the valve seals and install new ones.
A. You can reassemble the horizontal stabilizer.
B. You can trim the horizontal stabilizer to the right angle.
C. You can adjust the incidence of the horizontal stabilizer.
A. Substitutes with different quality can be used.
B. You can not use substitutes with same quantity.
C. Equivalent substitutes are permitted to use.
A. Tool is adjacently available for the installation procedure.
B. Tool is subsequently available for the installation procedure.
C. Tool is subsequently available for the installation task.
A. 隔离引起故障的部分。
B. 隔离部件产生了故障。
C. 引起故障的部分已经被隔离。
A. The air temperature outside the aircraft refers to the atmospheric air dynamic temperature.
B. Outside air temperature is the free air static temperature.
C. The flowing air effects the ambient air temperature.
