×
单选题
3345. The second mode of pressurization control is the constant differential mode , which controls cabin pressure to maintain a constant pressure difference between the air pressure inside the cabin and the ambient air pressure , regardless of aircraft altitude changes ( )
A
增压控制的第二种方式是定差模式,它控制客舱压力,无论飞机的高度如何变化,保持客舱内气压与环境气压之 间恒定的压差;
B
增压控制的第二种方式是变差模式,它控制客舱压力,使客舱内气压与环境气压之间保持恒定的压差,无论飞机 的高度如何变化;
C
增压控制的第二种方式是定差模式,它控制客舱压力,飞机随着飞行高度的变化,保持客舱内气压与环境气压之间变化的压差;
答案解析
正确答案：A
相关题目
单选题
955.Lift the cylinder above its installed position ( )
单选题
954.Torquemeter is an indicating system that displays the output torque available on the propeller shaft( )
单选题
953.Supply hydraulic power to system B with the pump( )
单选题
952.Stop the test after 2 seconds ( )
单选题
951.Make sure that the landing-light cutoff switch power connection is safe( )
单选题
950.如果溶液进入眼睛,立即就医。( )
单选题
949.Be careful when you move jet pipes or exhaust cones that have insulating blankets ( )
单选题
948.在发动机启动前远离排气区域 ( )
单选题
947.Only use technical verbs as verbs, not as nouns( )
单选题
946.Before you put new oil in the system, it is mandatory to replace the filter( )
