Remove all loose dirt from the seat with a moist cloth.

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. 将螺纹杆放入接头中

B. 将杆的一端缠上线放入接头中

C. 将杆的螺纹端放入接头中

A. 对于飞机维修中的行为，法规中规定的要求很重要。

B. 了解法规的要求对于飞机维修来说非常重要。

C. 在飞机维修活动中，遵守法规是非常重要的。

A. Setting cable tension, flight control surfaces travel limits and stops are the main tasks of rigging.

B. Cable tension set, flight controls travel limits adjustment and travel stops set are the rigging procedures.

C. Rigging involves setting cable tension, adjusting travel limits of flight controls, and setting travel stops.

A. The compressor needs to be equipped with a pressure regulator, air hoses, and an appropriate filter system to ensure that clean, dry, oil-free air is delivered to the nozzle.

B. A press regulator, air ducts, and a proper filtration system form the compressor, which surely delivers clean, dry, oily air to the spray nozzle.

C. For the compressor that ensures clean, dry, oilless air is delivered to the injector, it is necessary to be equipped with a pressurization regulator, air pipes, and an adequate filter system.

A. Sample the fluid to contaminate microbiology.

B. Do a fuel sampling for microbiological contamination.

C. Obtain a demo of oil to determine the microbial pollution.

A. 确保着陆时切断灯的开关电源连接。

B. 确保着陆灯断开电门的电连接是安全的。

C. 确保着陆灯安全切断了开关电源连接。

A. 一个关于序列号/组件号(或其他识别信息)的列表在右边页面相应的栏目中。

B. 页面右侧相应的栏目中列出了对应的序列号/组件号(或其他识别信息)。

C. 一组对应序列号/组件号(或其他识别信息)的栏目应显示在正确的页面上。

A. 燃油泄漏会导致发动机受损。

B. 发动机性能与燃油泄漏无关。

C. 燃油渗漏会降低发动机性能。

A. Grind the surface with a soft cloth after it becomes light.

B. Rub the surface with a soft cloth when it becomes brightness.

C. Polish the surface with a soft cloth until it becomes shiny.