The usual control for the left pack makes sure that it supplies air at a temperature that gives the necessary cooling for the flight compartment.

A. 乘客空调供给从混合总管处获得空气。

B. 乘客空调分配从混合总管处获得空气。

C. 乘客空调分配从混合软管处获得空气。

A. This format may be used in integra or in part.

B. This format may be used in its entirety or in part.

C. This format may be used in its tacticallity or in part.

A. 在制作壳体之前，确保钻头的尖端锋利。

B. 在钻孔之前，确保钻头的尖端锋利。

C. 在钻孔之前，确保电锯的尖端锋利。

A. 所有的流量控制组件，如检查活门、燃油泵、油滤，应该包含在内。

B. 所有的流量控制装置应该包含在内，如单向活门、燃油泵、蓄压器。

C. 所有的流量控制装置应该包含在内，如检查活门、燃油泵、蓄压器。

A. Those units means that they can prevent it from eroding.

B. Those units provide a method of deicing.

C. Those units provide a way to prevent the formation of ice.

A. Emergency illumination refers to an individual and dependent subsystem which is used to provide lighting when the main electrical power fails.

B. Emergency lighting can provide illumination for an individual and independent subsystem in case of main electrical power failure.

C. Emergency lighting is the separate and independent subsystem used to provide illumination in case of primary electrical power failure.

A. It changed the volts in the transmitter

B. It changes the electrical currents in the transmitter.

C. It changed the electronic currents in the reciever.

A. 数据应该被显示为仪表空速和指示空速来保证零误差。

B. 数据应作为标定空速呈现，而不是零机械误差的仪表空速。

C. 假定仪表误差为零，数据应以校正空速和指示空速显示。

A. During this period,if you use economy power settings, the engine may be damaged.

B. The use of economy power settings during this period may be detrimental to the engine life.

C. The use of economy power settings during this period may reproduce the engine life.

A. 该速度指示仪此段弧线的下限是着陆构型下的最大纵向速度。

B. 该速度指示仪此段弧线的下限是着陆构型下的最大横向速度。

C. 该速度指示仪此段弧线的下限是最大重量情况下着陆构型时的失速速度。