在上接近盖板上涂一层密封剂。

A. Turn the drain valve counterclockwise to cause the fluid to stop flowing before the valve is pushed.

B. When you turn the drain valve counterclockwise, no fluid will flow until you push the valve in.

C. Make sure there is no fluid flowing after the valve is pushed, then turn the drain valve clockwise.

A. 用一块棉布把窗玻璃擦亮。

B. 用一块软布把窗玻璃擦干净。

C. 用一块软布把窗玻璃擦亮。

A. 在紧急情况下，飞行员应准备至关重要的物品的检查清单。

B. 在关键情况下，飞行员的检查清单应限制在最大量，而且是对飞行员至关重要的。

C. 检查清单应限于在紧急情况下对飞行员至关重要的物品的最小数量。

A. 驾驶舱从左侧空调组件获得空调空气，并在总管里混合。

B. 驾驶舱从左侧空调组件和混气总管获得空调空气。

C. 驾驶舱从左侧空调组件和混合总管获得增压空气。

A. The purpose of radar is to obtain, process and display image information.

B. Grasping, processing and displaying grafic information is the function of radom.

C. The purpose of radar is to transmit, process and caculate image information.

A. Ground Idle Power refers to the power required to run an engine on the ground, as slowly as possible, yet sufficient to ensure satisfactory engine, engine accessory, and airplane operation with a minimum of thrust.

B. Ground Idle Power refers to the power required to run an engine as slowly as appropriate on the ground while still ensuring satisfactory airplane operation with a maximum of thrust of engine and engine accessory.

C. For Ground Idle Power, it determines the minimum power necessary to initiate and maintain safe airplane operation, engine accessory function, and satisfactory engine performance while limiting the degree of thrust utilized.

A. The recommended inspection procedure provided by the manufacturer when delivering the aircraft helps to ensure its airworthiness throughout its life. Due to differences in the tasks performed, maintenance provided, service life, and usage rate of the aircraft, ABC Company has determined through inspection, testing, and analysis that it is necessary to provide additional inspection requirements to further ensure that the aircraft can continue to operate under the initial approved design load.

B. The recommended inspection procedures provided by the manufacturer at the time of delivery of the aircraft help ensure its airworthiness. Due to differences in the missions performed, maintenance given and the age and utilization of the aircraft, ABC has determined, based on inspections, testing and analysis, that additional inspection requirements are deemed necessary to further ensure that the aircraft can continue to operate at the initially validated design loads.

C. The airplanes were delivered with recommended inspection programs to keep them airworthy. Because of the varied missions the airplanes performed, type of care given, and age and utilization rates, ABC has determined, based on inspections, tests, and analyses, that it is necessary to provide additional inspection requirements to further ensure that the airplanes can continue to carry the design loads it was originally certified for.

A. 为防止外来物摩擦，对表面抛光。

B. 为防止不必要的磨损，对表面进行打磨修理。

C. 对表面进行抛光以防止不必要的磨损。

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. 如果测试指示无故障，则继续执行程序。

B. 如果指示灯显示变弱，则更换阀门。

C. 如果测试指示有渗漏现象，则更换阀门。