A、 This system is used to assist or avoid the formation of ice on masts and fairings.
B、 This system is used to eliminate or prevent the formation of ice on antennas and radomes.
C、 This system is used to get rid of or escape the formation of ice on probes and domes.
答案：B
A、 This system is used to assist or avoid the formation of ice on masts and fairings.
B、 This system is used to eliminate or prevent the formation of ice on antennas and radomes.
C、 This system is used to get rid of or escape the formation of ice on probes and domes.
答案：B
A. When described the aircraft and its system,you should always use third people talking.
B. Generally,in describing the airplane or its system,third person wording should be used.
C. When you describing the airplane systems,third person mood shall be used.
A. The swivel nuts on both valves engage threads on an internal stem that loosens or draws tight the valve stem to a metal seat.
B. The rotating nuts on both valves are meshed with the threads on the inner valve stud,so that the valve stud is loosened or tightened to a metal valve base.
C. The swing nuts on both valves engage with the threads on the internal spool,allowing the spool to loosen or tighten to the metal seat.
A. 把飞机推回到原来的位置。
B. 将飞机恢复到通常状态
C. 把飞机向后推到原来的位置。
A. Caution notes regarding possible hazards of using authorized and unauthorized cleaning agents shall be included.
B. Caution notes regarding use of unauthorized cleaning agents and possible hazards of using authorized ones shall be included.
C. Caution notes regarding use of authorized cleaning agents and possible hazards of use ofunauthorized ones shall be included.
D. C.Caution notes regarding use of authorized cleaning agents and possible hazards of use ofunauthorized ones shall be included.
A. 如果部件跌落,有可能会造成轻微的损坏。
B. 如果部件掉落,可能会造成永久性的损坏。
C. 部件永久性的损坏可能是由掉落造成的
A. 对比两个指示。
B. 叠加两个示数。
C. 记录两条线索。
A. According to Boeing Docs and associated ADs,changing the dimension of the thrust reverser upper locking actuator lock sensor target can result in slow detection of the failure or undetected failure.
B. Based on the Boeing Docs and the associated ADs,if the size of the thrust reverser upper locking actuator lock sensor target is increased,it may result in delayed or undetected the actuator failure.
C. As described in Boeing Docs and the associated ADs,if the orientation of the locking actuator on the thrust reverser locking sensor target changes,the actuator failure will be delayed or undetected.
A. The temperature value must be more than 800 kPa.
B. The compression value must be more than 800 kPa.
C. The pressure value must be more than 800 kPa.
A. 逐步打开充电装置上的堵盖。
B. 逐渐打开充电装置上的旋塞。
C. 逐步打开充电单元上的开关。
A. 那些说明可以作为定期维修所必需的参考。
B. 那些指令是执行定期维护所必需的。
C. 这些指示必须进行有计划维修。
