A、 The aircraft navigation systems provide the flight which is required by the crew,and meet the the most provisionally safety requirements.
B、 The aircraft navigation systems provide the flight which is required by the crew,and meet the the most appropriate safety requirements.
C、 The aircraft navigation systems provide the crew with the data required for flight within the most appropriate safety requirements.
答案：C
A、 The aircraft navigation systems provide the flight which is required by the crew,and meet the the most provisionally safety requirements.
B、 The aircraft navigation systems provide the flight which is required by the crew,and meet the the most appropriate safety requirements.
C、 The aircraft navigation systems provide the crew with the data required for flight within the most appropriate safety requirements.
答案：C
A. 松开卡箍,将螺钉固定到支架上。
B. 松开螺钉,将卡箍固定到支架上。
C. 松开将卡箍固定到支架上的螺钉。
A. 如果你认为会下雪,请确保容器置于适当的温度条件中。
B. 如果你认为会下雪,请确保车辆处于合适的配置。
C. 如果你认为会下雪,请确保车速处于合适的范围之内。
A. 用 1/2 英寸的扳手拆下盖子。
B. 用 1/2 英寸长的扳手拆下端盖。
C. 用 1/2 英寸的套筒拆下盖子。
A. 确保维修飞机时不要撞到勤务箱。
B. 确保勤务车不要撞到飞机。
C. 确保勤务柜不要放在飞机的旁边。
A. Spoilers are used to increase the drag of the aircraft in flight,or to interrupt lift during landing and during rejected take-off.
B. Spoilers are used to enhance aircraft resistance in flight or to disrupt boost during landing and when take-off is canceled.
C. Spoilers are used to increase the aircraft drag in flight,or destroy the lift during landing and in case of aborted take-off.
A. Cut and discard the lockwire.
B. Snip and remove the lockwire.
C. Snip and discard the cable.
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. 如果可行的话,手册中出现的计量单位应该保持一致。
B. 实际上,手册中出现的测量值必须保持一致。
C. 手册使用的计量单位必须与实际情况保持一致。
A. The exhaust from the Auxiliary Power Unit is dangerous.
B. The exhaust from the nozzle unit is dangerous.
C. The exhaust from the Auxiliary Power Unit inlet is dangerous.
A. Write the instructions in the mandatory mode.
B. Write the instructions in the imperative form.
C. Write the instructions in the active mode.
