A、 Because pressurized air can blow contamination away from the display unit, you should not use it to clean the holes behind the display unit in order to avoid damaging the equipment.
B、 Do not use compressed air to clean the holes on the rear of the display unit. Compressed air will push contamination into the display unit. This can cause damage to the equipment.
C、 Do not use compressed air to clean the holes behind the display unit, because it can blow contaminants into display unit which may be damaged.
答案：B
A、 Because pressurized air can blow contamination away from the display unit, you should not use it to clean the holes behind the display unit in order to avoid damaging the equipment.
B、 Do not use compressed air to clean the holes on the rear of the display unit. Compressed air will push contamination into the display unit. This can cause damage to the equipment.
C、 Do not use compressed air to clean the holes behind the display unit, because it can blow contaminants into display unit which may be damaged.
答案：B
A. The function of this special tool is to remove the shims.
B. The purpose of this special tool is to extract the bushing.
C. The function of this special tool is to extend the washer.
A. 止动螺母的不正确调整会造成方向舵脚蹬的损坏。
B. 方向舵踏板的止动螺钉不恰当的调节会带来伤害。
C. 方向舵脚蹬上的止动螺栓的不恰当调节会造成损坏。
A. Obey the safety precautions when you do work with high voltages.
B. When working with high resistances, you should follow the safety precautions.
C. The safety precautions are optional in an environment with high voltages.
A. 此章节包括了激励、传感、计算、增益、控制、作动和警告装置。
B. 此章节包括了接通、感应、计算、放大、控制、作动和警告装置。
C. 此章节包括了啮合、感受、计算、反馈、控制、作动和警告装置。
A. This document compliments informaiton to the applicable airplane maintenance manual(s).
B. This document provides necessary informaiton to the applicable airplane maintenance manual(s).
C. This document provides supplemental informaiton to the applicable airplane maintenance manual(s).
A. 建议在飞行50小时内不要拧紧螺栓。
B. 建议在飞行50小时前重新拧紧螺栓。
C. 建议在飞行50小时后再次拧紧螺栓。
A. You can reassemble the horizontal stabilizer.
B. You can trim the horizontal stabilizer to the right angle.
C. You can adjust the incidence of the horizontal stabilizer.
A. Make the attitude of the valves the same.
B. Make the positions of the valves agree.
C. Make the altitude of the valves agree.
A. 直接从高压气瓶中放气是不可取的。
B. 不要直接用高压气瓶从系统中抽气。
C. 不要直接用高压气瓶给系统充气。
A. Airplane primary data should be displayed neither in graphs and tables.
B. Airplane behavior data shall be predicted in both graphical and tabular formats.
C. Aircraft performance parameters can be represented graphically or in tables.
