A、 Quickly turn on the oxygen system, the mask begins to supply oxygen.
B、 Pull the oxygen mask with a sudden movement to start the flow of oxygen.
C、 Suddenly start the oxygen supply system, the lake drops.
答案：B
A、 Quickly turn on the oxygen system, the mask begins to supply oxygen.
B、 Pull the oxygen mask with a sudden movement to start the flow of oxygen.
C、 Suddenly start the oxygen supply system, the lake drops.
答案：B
A. Keep the caps off the hoses.
B. Make sure the caps are off from the hoses.
C. Take the caps off the flexible pipe.
A. 包括前环形罩、气道、压气机风扇罩、埋入式发动机导管、涡流发生器、作动器、控制手柄、钢索、管道、连杆、门、警告系统、位置指示器等。
B. 包括前环形罩、气道、压气机风扇罩、埋入式发动机导管、涡流发生器、作动器、控制手柄、钢索、管道、连杆、门、警告系统和位置指示器。
C. 包括前环形罩、气道、压气机、埋入式发动机导管、涡流发生器、作动器、控制手柄、钢索、管道、连杆、门、警告系统、位置指示器等。
A. When you change a word with the alternative, you must ensure that the meaning of the sentence varies.
B. The meaning of the sentence can be different when you use the alternative you select to replace a word.
C. Always keep the same meaning of the sentence when you use the alternative to replace a word.
A. 浸泡组件四小时
B. 冲洗组件四小时
C. 打磨组件四小时
A. 加热以融化多硫化物密封剂;
B. 加热固化多硫化物密封剂;
C. 加热使多硫化物密封剂有疗效;
A. 系统中向座舱提供冷却空气的部分及其控制装置。包括冷却装置、与冷却器操作相关的指示系统等,如适用。不包括温度控制和指示系统。
B. 系统中向座舱提供加热空气的部分及其控制装置。包括冷却装置、与控温器操作相关的指示系统等,如适用。不包括温度控制和指示系统。
C. 系统中向驾驶舱提供制冷空气的部分及其控制装置。包括冷却装置、与冷却器操作相关的指示系统等,如适用。不包括调温控制和指示系统。
A. 将气缸提升至其安装位置的正下方
B. 将气缸提升至其安装位置的前方
C. 将气缸提升至其安装位置的上方
A. Before opening operation, check the appearance of the door slide warning pennant in the door window to make sure that the escape slide is not armed.
B. Before opening operation, check the availability of the door slide warning pennant in the door window to make sure that the escape slide is not extracted.
C. Before opening operation, check the appearance of the door slide warning indicator in the door window to make sure that the escape slide is not retracted.
A. Calibrate the hygrometer to the celsius scale.
B. Calibrate the thermometer to the celsius scale.
C. Calibrate the clinometer to the celsius scale.
A. That portion of the system which provides guidance during takeoff, landing and taxing. Includes items such as localizer, glide slope, ILS, markers, eye director, ground guidance systems, etc.
B. That portion of the system which provides guidance during approach, landing and taxing. Includes items such as localizer, glide slope, ILS, markers, paravisual director, ground guidance systems, etc.
C. That portion of the system which provides guidance during takeoff, landing and taxing. Includes items such as localizer, glide slope, ILS, markers, paravisual director, ground guidance systems, etc.
