749.The Radio Altimeter ( ) system determines the height of the aircraft
above the terrain during initial climb, approach and landing phase.

A. 　确保箭头指向燃油流量流动的方向。

B. 　确保标记指向燃油流量流动的方向。

C. 　确保标记指向燃油流量相反的方向。

A. 　该工具用于将钢索张力调节器上的标记与固定标盘上的相关指针对齐。

B. 　该工具用于将钢索张力调节器上的标记与固定标盘上的相关刻度对齐。

C. 　该工具用于将钢索弹簧调节器上的标记与固定标盘上的相关刻度对齐。

A. 　Monitor the operation of the actuator motor.

B. 　Monitor the operation of the steering motor.

C. 　Monitor the operation of the starting motor.

A. 　 程序应在每章中按参考号顺序编制,并带有相应的首要和主要主题头,并需
从新页面顶部开始每个程序。

B. 　 程序应在每章中按参考号顺序编制,并带有相应的次要和主要主题头,则无
需从新章节顶部开始每个程序。

C. 　 程序应在每章中按参考号顺序编制,并带有相应的主要和次要主题头,则无
需从新页面顶部开始每个程序。

A. 　Distances shown are based on weak wind.

B. 　Distances shown are developed with no wind.

C. 　Distances shown are on the basis of gentle wind.

A. 　如果不正确跟进操作程序、检查、修理或维护程序,可能导致人员受伤。

B. 　如果没有紧跟操作程序、检查、修理或维护程序,可能导致人员伤亡。

C. 　如果不正确遵循操作程序、检查、修理或维护程序,可能导致人员伤亡。

A. 　The gearbox is installed behind the pneumatic motor.

B. 　The bump is installed behind the hydraulic motor.

C. 　The bump is installed behind the pneumatic turbine.

A. 　ABC has determined the varied mission the airplanes performed, type of
care given, and age and utilization rates because providing additional
inspection requirement is prerequisite to further ensure that the
airplane can continue to carry the design loads it was initially certified
for based on inspections, tests, and analyses.

B. 　ABC has determined that providing additional inspection requirements
is prerequisite to further ensure that the airplanes can continue to carry
the design loads it was initially certified for based on inspections,
tests, and analyses because of the varied mission the airplanes performed,
type of care given, and age and utilization rates.

C. 　To further ensure that the airplanes can continue to carry the design
loads it was initially certified for, owing to the diversified mission
the airplanes performed, type of care given, and age and utilization rates,

A. 　FIRE

B. 　FIRES

C. 　FIRED

A. 　确保间隙在限制范围内。

B. 　确保空间有限。

C. 　确保空间是受限的。