If the damage is only to the middle treads, the tire is serviceable.

A. The airworthiness section may recommend each expected replacement time.

B. The replacement time must be set forth in part of airworthiness section.

C. Airworthiness section must set forth each mandatory replacement time.

A. The interval between checks is at least two minutes.

B. The lowest limit of checks is two minutes.

C. Between two checks, it needs two minutes.

A. Do the tightening procedure.

B. Do the loosening procedure.

C. Do the strengthening procedure.

A. The flap angles can not be found in Table 1.

B. The flap angles are stated in Table 1.

C. In Table 1, there are no flap angles.

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. 溶剂不可以用来保护呼吸装置。

B. 不要在没有呼吸保护措施的情况下使用酸液。

C. 如果发现无呼吸，尽快使用保护设备。

A. 检查所有的部件和液力管路连接。

B. 检查所有的部件, 液力接头和连接管路。

C. 连接全部零件和液力管路。

A. Lubricate the engine and its accessories with the same brand.

B. Lubricants for the engine and the auxiliary equipment are the same.

C. The engine and the additional devices are greased in a same manner.

A. 如果格式参数或规则不适合于飞机的类型，则可以使用可能达到相同目的的对等物。

B. 如果表格参数或条款与机型不符，必须使用批准的等效部件。

C. 如果使用可以达到相同目的的对等物，格式参数或规则能够用于不适合的飞机类型。

A. 标准化将通过对根据本规范制定的持续适航程序中所包含的检查要求的统一解释来提高安全性。

B. 标准化通过统一检查包含在持续适航程序中准备的相应规范来增强安全性。

C. 通过对符合本规范的持续适航程序中的检查要求进行一致性验证，标准化将提高安全性。