A、 After three full cycles, extend and retract the actuator.
B、 You should extend and retract the actuator through three complete cycles.
C、 Do nothing to the actuator after three complete cycles.
答案：B
A、 After three full cycles, extend and retract the actuator.
B、 You should extend and retract the actuator through three complete cycles.
C、 Do nothing to the actuator after three complete cycles.
答案：B
A. 操作调光开关，确保光线的强度发生变化。
B. 操作旋转式开关，确保灯光发生变化。
C. 已调节明暗开关，灯光的亮度发生了变化。
A. A maximum distance of 50 feet is required between consumable materials and the work area.
B. Keep flammable materials at a minimum distance of 50 feet from the work area.
C. Explosive materials must be kept at least 50 feet away from the work area.
A. To make sure that ATC transceivers are in standby mode, you must simulate altitude, otherwise false TCAS signals may occur intermittently.
B. Make sure the ATC transmitters are in standby mode, or false TCAS targets may occur accidentally due to altitude simulation.
C. Make sure that the ATC transponders are in standby mode when you simulate altitude. You can accidentally cause false TCAS targets.
A. 本段还应说明，除已规定的检查外，还可能需要根据适航指令完成其他检查。
B. 本段还应说明，适航命令可能要求除已建立的监测外，还要求进行其他监测。
C. 本段还应说明，除已建立的监视外，适航指令可能要求进行其他监视。
A. Make the panel display a warning notice in order to reveal the operation of the controls.
B. Tag a warning notice on the panel to remind the operation of the controls.
C. Put a warning notice on the panel to prevent operation of the control.
A. Manuals for all single engine aircraft, except those that have been shown to be "critically unable to stall", should have procedures for recovering from a stall.
B. Handbooks for all single engine airplanes, other than for those airplanes which have been shown to be "characteristically incapable of spinning" shall contain procedures for recovery from spins.
C. Manuals for single engine aircraft, otherwise these that have been proved to be "featured unable to spin", should include steps for recovering from a spiral.
A. Quickly turn on the oxygen system, the mask begins to supply oxygen.
B. Pull the oxygen mask with a sudden movement to start the flow of oxygen.
C. Suddenly start the oxygen supply system, the mask drops.
A. 燃油系统指发动机以外储存燃油、给发动机配送及输回燃油的装置和部件。
B. 滑油系统指那些储存滑油，并把滑油送往发动机以及从发动机回油的相关外部组件和部件。
C. 滑油系统指发动机内储存润滑油和运输润滑油的装置和部件。
A. Use a solution of foam and water to clean.
B. Clean with bleach and water.
C. Clean with a solution of soap and water.
A. 通过最少两个全循环操作副翼，并操作至其最大行程。
B. 至少完整操作副翼两个全循环至其最大行程。
C. 操作副翼最小两个单位，至其最大行程。
