A、 During the system test, the PSU nitrogen mask doors will open and the nitrogen masks will appear in the nitrogen box if the door test stop or the tapes are not installed.
B、 If the door test stop or the masking tape is not installed, the doors of the PSU oxygen box will open and the oxygen mask will remain in the original position.
C、 The PSU oxygen box doors will open and the oxygen masks will go out of the oxygen boxes during the functional test if you do not install the door test stop or the masking tape.
答案：C
A、 During the system test, the PSU nitrogen mask doors will open and the nitrogen masks will appear in the nitrogen box if the door test stop or the tapes are not installed.
B、 If the door test stop or the masking tape is not installed, the doors of the PSU oxygen box will open and the oxygen mask will remain in the original position.
C、 The PSU oxygen box doors will open and the oxygen masks will go out of the oxygen boxes during the functional test if you do not install the door test stop or the masking tape.
答案：C
A. 为避免不必要的磨损，将表面涂漆。
B. 为避免不必要的颗粒，将表面清洁。
C. 为避免不必要的摩擦，将表面抛光。
A. The bolt will be at the 2 o’clock position when you look at the pump from the rear.
B. The rivet is installed on the 2 o＇clock position of the pump when looking from rear to front.
C. Look at the bolt installed on the pump from rear to front at the 2 o＇clock position.
A. 为了简化表示和便于理解，应将复杂的系统分为系统功能，而非总体主原理图。
B. 为了充分展示和理解，应将复杂系统分解成子系统，而非总体主图表。
C. 为了演示方便和便于理解，复杂系统应简化为系统功能，而不是总体主图表。
A. All the related data shall be grouped in a logical manner.
B. A logical method is required to group the unconcerned data together.
C. Divide all the involved data into groups logically.
A. The selection of data by manual producers which are included in this section shall be restrained by the concepts contained in the preface of this specification.
B. The selection of data by manual producers included in this section shall be governed by the concepts contained in the preamble to this specification.
C. In this selection, the producer＇s choice of data should be bound by concepts contained in the preamble of this specification.
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. 当自动驾驶仪接通时，声音警告模块发出声音警告，自动驾驶状态信号器(ASA)上的红色A/P灯闪烁。
B. 当自动飞行系统被断开时，自动飞行状态信号灯(ASA)上的红色A/P信号闪烁，从而可以听到声音警告模块发出声音警告。
C. 当自动驾驶断开时，声音警告模块发出声音警告，自动飞行状态指示器(ASA)上的红色A/P灯闪烁。
A. 当开始一个新的段落，读者知道在这个段落里会有新的或者不同的信息。
B. 在一个新的段落开头，应该让读者了解这段中是否有任何更新的信息。
C. 当一个新的段落开始，应该让读者读到新的或不同的信息
A. 维修手册应提供每个标牌的位置和插图 - 模板或标志符，以表明哪些是最低设备清单要求的。
B. 维修手册中应提供标牌的模板和符号标记，具体安装按最低设备清单要求显示其位置。
C. 维修手册须提供各种最低设备清单中要求的标牌位置信息和图片说明。
A. This manual contains the material required to be provided to the pilot by the Federal Aviation Regulations and additional information offered by the manufacturer and consists the FAA approved airplane flight manual.
B. This handbook includes the material required to be furnished to the pilot by the Federal Aviation Regulations and additional information provided by the manufacturer and constitutes the FAA approved airplane flight manual.
C. Federal Aviation Regulations require the manual to furnish the material required to the pilot and additional information provided to the manufacturer and consists of the FAA approved airplane flight manual.
