1456.Remove the four screws that attach the flangeto the cover .

A. Tighten the threads,nuts,clips,or connectors to the correct torque.

B. Tighten the bolts,nuts,clamps,or connectors to the correct torque.

C. Tighten the bolts,spacers,clips,or connectors to the correct torque.

A. 确保舱门与其附近表面平齐。

B. 确保使用与舱门表面相似的材料对舱门进行打磨。

C. 确保舱门材料与其附近表面材料相同。

A. Before you move the spoilers,tell all persons to get off the wings.

B. Before telling all persons to get off the wings,you move the ailerons.

C. Before you move the ailerons,tell all persons to get off the wings.

A. Elevator move is limited by the move of the elevator power control units.

B. Elevator trip is limited by the move of the elevator power control units.

C. Elevator travel is limited by the stroke of the elevator power control units.

A. 系统流程图应以带有图案的阴影图标表示,并尽少使流程转弯。示意图要包括发动机、油箱、水箱等并以它们为示意图的起始。

B. 系统流程图应以有图案的阴影为背景,并且尽量少用折线。示意图应包括发电机、燃油箱和液压油箱,它们应作为所示流程的起点。

C. 系统流程图应以阴影图形为图标底色,并且尽少使用连线。示意图以发电机、油箱和储压罐作为流程的端点。

D. B.系统流程图应以有图案的阴影为背景,并且尽量少用折线。示意图应包括发电机、燃油箱和液压油箱,它们应作为所示流程的起点。

E. C.系统流程图应以阴影图形为图标底色,并且尽少使用连线。示意图以发电机、油箱和储压罐作为流程的端点。

A. Do not apply too much composite on the blanket.

B. Do not apply too much adhesive on the gasket.

C. Do not apply too much compound on the gasket.

A. If the error is more than 3 degrees,calibrate the glide slope.

B. If the error is more than 3 degrees,calibrate the compass.

C. If the error is more than 3 degrees,calibrate the gyroscope.

A. 只对表面申请很轻的压力。

B. 只传导很轻的压力到表面。

C. 只对表面施加很轻的压力。

A. 问题的原因来自于燃油系统。

B. 问题的根源在燃油系统。

C. 故障的位置在液压油系统。

A. Use backthrust to change the direction of the exhaust to achieve contrary thrust.

B. Thrust reverser is used to change the direction of the exhaust gases for reverse thrust.

C. To change the direction of the exhaust nozzle,the thrust reverser is used to obtain the opposite thrust.