A、 The exit doors are mainly used for passenger boarding.
B、 The exit doors are only used for evacuation.
C、 The exit doors are not only used for the passengers to evacuate from the airplane but also used for normal exit.
答案：B
A、 The exit doors are mainly used for passenger boarding.
B、 The exit doors are only used for evacuation.
C、 The exit doors are not only used for the passengers to evacuate from the airplane but also used for normal exit.
答案：B
A. 用去脂设备除去油和油脂。
B. 用脱脂剂除去油和油脂。
C. 用脱脂代表除去油和油脂。
A. 调整加速度计的精度。
B. 准确调整陀螺仪。
C. 调整罗盘的精度。
A. 不要用手辅助低压压气机的运动。如果这样做，低压压气机可能会导致人身伤害并损坏设备。
B. 不要用手阻止低压压气机的运动。如果这样做，低压压气机可能会导致人身伤害并损坏设备。
C. 不要用手移动低压压气机。如果这样做，低压压气机可能会导致人身伤害并损坏设备。
A. “禁止踩踏”区域或可通往翼、身油箱的路线必须表记出来并加以必要的警示信息。在有些飞机上，用黑色点带标示出“禁止踩踏”区域。英文或双语标记的位置使得从前面或后面靠近飞机时都可以读到这些标记。
B. “没有台阶”区域或不可通往翼、身油箱的路线必须表记出来并加以必要的警示信息。在有些飞机上，用黑色点带标示出“没有台阶”区域。英文或双语标记的位置使得从前面或后面靠近飞机时都可以读到这些标记。
C. “禁止踩踏”区域或不可通往翼、身油箱的路线必须表记出来并加以必要的警示信息。在有些飞机上，用黑色点带标示出“禁止踩踏”区域。英文或双语标记的位置使得从前面或后面靠近飞机时都可以读到这些标记。
A. Light surface blooming, which can occur on items in storage, is not detrimental to the component.
B. Surface blooming, often found on corroded items, has little adverse effect on the component when it is mild.
C. Items in storage tend to have surface blooming which is beneficial to the component.
A. 为防止损坏发动机，立即打开所有安装的防护罩。
B. 为防止损坏发动机，稍候装上所有开口的防护罩。
C. 为防止损坏发动机，立即在所有开口上安装防护罩。
A. AIRBORNE AUXILIARY POWER UNITS are those power plants (engines) built-in on the aircraft for creating and supplying power in a single type or combination of auxiliary electric, hydraulic, pneumatic or other power.
B. AIRBORNE AUXILIARY POWER UNITS are those units (engines) that are suspended on the aircraft for bringing and providing power in a single manner or combination of auxiliary electrical, hydraulic, pneumatic, or other power.
C. AIRBORNE AUXILIARY POWER UNITS are those airborne power plants (engines) which are installed on the aircraft for the purpose of generating and supplying a single type or combination of auxiliary electric, hydraulic, pneumatic or other power.
A. Structural fasteners are not included in the normal maintenance items, they are provided separately in the maintenance information.
B. Structural fasteners do not belong to normal maintenance items, so the maintenance information does not include this part of the content.
C. Some structural fasteners can be repaired during normal maintenance, so the maintenance information includes the corresponding content.
A. This procedure does not include the removal of the cylinder.
B. This procedure does not exclude the removal of the piston.
C. This procedure does not include the removal of the piston.
A. 如果有损伤报告，要进行检查。
B. 检查后发现有损伤。
C. 如有损伤迹象，进行检查。
