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 independentsubsystem used to provide illumination in case of primary electrical power failure.
答案：C
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 independentsubsystem used to provide illumination in case of primary electrical power failure.
答案：C
A. Detection and coding systems shall be used so that it's easy to isolate faults,repair routes and replace the components.
B. You should use the detecting and coding system that can help to remove faults,repair lines and change the components.
C. To facilitate troubleshooting,repair of circuits,and replacement of components,an identification and coding system should be used.
A. 包括折叠页和章节的起始页在内,所有页面均应双面打印。
B. 除折叠页外,章节的起始页和所有页面均应双面打印。
C. 除折叠页和章节的起始页外,所有页面均应双面打印。
A. Legal meaning whatsoever and implications couldn't be enclosedto the rules and terms in this document.
B. No legal significance or meanings should be fixed to the regulations and terms in this document.
C. The rules and terms in this document have no legal meaning or imply something.
A. Manufacturers' recommended time limits,maintenance checks and inspections (both planned and unplanned) are arranged in Chapter 5.
B. Manufacturers' recommended time limits,maintenance checks and tests (both scheduled and unscheduled) are arranged in Chapter 5.
C. Manufacturers' recommended time limits,maintenance checks and inspections (both scheduled and unscheduled) are arranged in Chapter 5.
A. The parts must be assembled tightly.
B. Make sure that the parts are attached securely.
C. The parts must be assembled loosely.
A. The lower seal appears as the lower bearing is pulled down.
B. You can see the lower seal before pulling the lower bearing down.
C. Only after you pull the lower seal down can you see the lower bearing.
A. State structure of airframe,wings and tail.
B. Present structure of airframe,wings and empennage.
C. Describe structure of fuselage,wings,and empennage.
A. However,an “emergency” almost always entails a failure that requires to respond immediately and rapidly,for example,the situations that a total powerplant fails,the fire or smoke occurs,or the cabin are depressurized rapidly.
B. An “emergency” however,almost always causes a malfunction that requests immediate and rapid response,such as the whole powerplant failure,fire or smoke,or rapid cabin pressurization.
C. However,an “emergency” is often related to a failure that demands respond simultaneously,such as the complete failure of the powerplant,fire or smoke,or rapid cabin warming.
A. 拆下标签。
B. 去除灰尘。
C. 移除设备。
A. 这类技术名词仅适用于描述性内容,如一般信息、系统综述和操作文本以及服务公告的综述部分。
B. 这类技术形容词仅适用于描述性文本,如一般信息、系统描述和操作文本以及服务协会的描述部分。
C. 这类技术动词仅适用于描述性内容,如概述信息、系统描述和操作步骤以及服务通告的描述部分。
D. C.这类技术动词仅适用于描述性内容,如概述信息、系统描述和操作步骤以及服务通告的
E. C.这类技术动词仅适用于描述性内容,如概述信息、系统描述和操作步骤以及服务通告的描述部分。
