Loosen the nut one full turn.

A. 陀螺仪将在大约15秒后变得稳定。

B. 地球仪将在大约15秒后变得稳定。

C. 地球仪将在大约15秒后变得稳定。

A. 刹车系统阐述了如何识别故障问题以及如何处理故障。

B. 刹车系统介绍了如何判断故障问题以及如果发生故障如何处理。

C. 刹车系统解释了如何识别即将出现的问题以及如果发生故障怎么办。

A. Explain when there is any change to the weight or force distance of the airplane, how to keep this record so as to acquire right starting data by calculating the weight and c.g. during normal operation of the airplane.

B. Explain how to maintain this record when changes to the weight or moments of the airplane are made so that accurate starting data is available to calculate the weight and c. g. during normal operation of the airplane.

C. In order to get correct starting data during abnormal operation of the airplane, the weight and c. g. should be calculated and explain how to keep this record when there are changes to the weight or moments of airplane.

A. The Unusual Procedures Check List should be in concrete, abbreviated form.

B. The Emergency Procedures Check List should be in constant, abbreviated form.

C. The Abnormal Procedures Check List should be in concise, abbreviated form.

A. Estimate the quality of fuel used for the flight.

B. Compute the quantity of fuel required for the flight.

C. Evaluate the quantity of fuel in the flight.

A. 确保襟翼和副翼微调手轮已收回并处于零位置。

B. 确保襟翼收起到零位，且副翼配平手轮处于零位。

C. 确保襟翼收上，副翼配平手轮处于零位。

A. Do not perform any work to the aircraft during maintenance.

B. It is forbidden to refuel the aircraft during maintenance.

C. You can add fuel to the aircraft at any time.

A. Documents must be temporarily edible.

B. Documents must be readily revisable.

C. Documents must be permanently durable.

A. Scrap the unit at the next check.

B. Repeat the unit at the next check.

C. Change the unit when performing next check.

A. 当压气机机匣被冷却后，压气机叶片间距变小。

B. 当涡轮机匣被冷却后，涡轮叶尖距变小。

C. 当涡轮机匣被冷却后，涡轮叶片间距变小。