A、 When cleaning corrosion with a cleaning fluid, avoid damaging adjacent areas.
B、 Avoid damaging the area around when we clean the corrosion with cleaner.
C、 Use solution to clean the corroded area and prevent to damage the surroundings.
答案：A
A、 When cleaning corrosion with a cleaning fluid, avoid damaging adjacent areas.
B、 Avoid damaging the area around when we clean the corrosion with cleaner.
C、 Use solution to clean the corroded area and prevent to damage the surroundings.
答案：A
A. Two systems can be energized at a time.
B. Two systems can be engaged at the same time.
C. Two systems can be adopted separately.
A. If necessary, fill the hydraulic reservoir with hydraulic fluid;
B. Drain the hydraulic reservoir as necessary;
C. Flush the hydraulic reservoir as necessary;
A. 当靶标移动到或离开临近传感器激活区域则将改变临近传感器电子性能。
B. 当目标进入或离开临近传感器作动区域则将改变临近传感器电子信号。
C. 当目标移动到或离开临近传感器工作区域则将改变临近传感器电子信息。
A. That portion of the system that monitors the flight of aircraft during approach and landing. This includes sensing, computing, indicating and warning devices such as computers, indicators, warning lights, etc.
B. That portion of the system that monitors the flight of aircraft during approach and RTO. This includes sensing, computing, indicating and caution devices such as computers, indicators, caution lights, etc.
C. That portion of the system that monitors the flight of aircraft during takeoff and go around. This includes sensing, computing, indicating and warning devices such as computering, indicating, warning lights, etc.
A. Make sure that the diameter of the hole is less than the specified value.
B. Make sure that the diameter of the hole is more than the specified value.
C. Make sure that the radius of the opening is less than the specified value.
A. Landing gear is left for ten minutes.
B. Landing gear should be kept extended for ten minutes
C. Extend landing gear after ten minutes retraction.
A. INTERMITTENT
B. INTERNAL
C. IRREGULAR
A. A mixture of fuel and oxygen can cause an explosion.
B. A mixture of fuel and hydrogen can cause an explosion.
C. A mixture of fuel and nitrogen can cause an explosion.
A. 冲击载荷会导致发动机发生冲击损伤。
B. 重着陆会导致发动机发生冲击载荷。
C. 飞机载重过太会导致发动机着陆时受到冲击。
A. Any bays have no doors.
B. Some of the bays do not have an access door.
C. Some decks do not have a door.
