2501. If the aircraft is parked on a slope, make sure that the wheel chocks are in position

A. 维修这个组件需要校准过的工具。

B. 安装这个组件需要专用工具。

C. 组件的安装需要精确的工具。

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 manufacturer may establish procedures to provide feedback on unairworthy conditions that were discovered when complying.

B. The manufacture may set up procedures to provide feedback when user find some unairworthy conditions discovered by manufacture.

C. The manufacture can establish program to receive feedback of users when they discover unairworthy conditions of requirements.

A. Remove the engine transmission housing attachment bolts.

B. Remove the bolts that attach the transmission housing to the engine.

C. Dismantle the bolts that attach the transmission housing to the engine.

A. Adjust the door operating rod until it aligns with the attachment point.

B. Adjust to obtain door operating rod alignment point.

C. Adjust to make the door align with the attachment point.

A. 压力波动和振动会导致软管磨损

B. 压力积聚和骤降会导致软管磨损

C. 压力波动和共鸣会引起软管磨损

A. The Fault Isolation Manual is provided neither as a printed manual nor as digital products, or a combination of these two.

B. The Fault Isolation Manual can be either a printed handbook or digital products, or a combination of both.

C. The Fault Isolation Manual furnishes a printed handbook ,or a digital product, or a combination of these two.

A. 大多数主要结构件对于飞机的性能起着重要的作用

B. 大多数次要结构对于飞机的性能有着重要影响

C. 多数次要机构的重要性与飞机的性能有关

A. Additional information or instructions， such as “Report any cracks found to this manufacturer”， are contained here.

B. Other information or instructions， such as “Record any cracks found to this manufacturer”， are contained here.

C. Additional information or instructions， such as “Report any leakage found to this manufacturer”， are included here.

A. The aviation gasoline is usually used for the turbine engine.

B. The aviation kerosene is usually used for the pistion engine.

C. The aviation kerosene is usually used for turbine engine.