Make sure that the indication on the gauge agrees with the quantity that is in the tank.

A. 不要拧紧螺母去压紧它。

B. 不要旋转螺母去校准它。

C. 不要拧松螺母去对准它。

A. 丁酮是重度除油剂，适合金属准备和编织盖板喷漆前去油。

B. 丙酮是重度油污去除剂，适合金属表面预处理和织物蒙皮喷漆前去油。

C. 异丙醇是重度油污去除剂，适合金属生产处理和织物表面喷漆前除油。

A. 每隔三天排水一次或每天使用饮用水系统一次。

B. 每三天至少排水一次或使用饮用水系统一次。

C. 最多三天就需要使用并排放饮用水系统一次。

A. Apply weight on the surface of the patch to make sure that the parts bond correctly.

B. The parts can be aligned properly by applying force on the surface of the patch.

C. In order to correctly attach the parts, the patch surface should be compressed.

A. An alphanumeric identifier is an assembly of characters and numbers. It can recognize something.

B. An symbolic-numeric identifier is an assembly of symbols and numbers. It can identifies something.

C. An alphanumeric identifier is a combination of letters and numbers that identifies something.

A. We advice you not do this procedure in the hangar.

B. We recommend that you do not perform this procedure in the hangar.

C. We are against perform this procedure in the hangar.

A. Extend the nose landing gear.

B. Extend the main landing gear.

C. Retract the main landing gear.

A. 用不同颜色的衬套来识别线路。

B. 识别不同颜色的金属丝套筒。

C. 用套筒来辨别电线的颜色。

A. A pilot with certification authorized by Part 43 of the regulation can perform limited preventive maintenance.

B. According to Part 43 of the regulation, A pilot is certificated to perform limited preventative maintenance.

C. A certificated pilot is authorized by Part 43 of the regulation to perform limited preventive maintenance.

A. 每个主燃油箱的通气油箱外侧控制溢出的燃油和排气系统中的燃油。

B. 每个主燃油箱外侧的通气油箱收集溢出的燃油和来自排气系统中的燃油。

C. 每个主燃油箱的通气油箱从外侧防止排气系统中的燃油溢出。