A、 In ＇shared interest＇ chapters for description and operation and system troubleshooting, the airframe manufacturer＇s masthead only shall be used; however, for unit troubleshooting and maintenance practices, both the airframe and component manufacturer＇s masthead may be used.
B、 In ＇shared interest＇ chapters for description and operation and system troubleshooting, It is recommended to use the masthead of the airframe manufacturer; however, for unit troubleshooting and maintenance practices, either the airframe or component manufacturer＇s masthead may be used.
C、 In ＇shared interest＇ chapters for description and operation and system troubleshooting, the airframe manufacturer＇s masthead only shall be used; however, for unit troubleshooting and maintenance practices, either the airframe or component manufacturer＇s masthead may be used.
答案：C
A、 In ＇shared interest＇ chapters for description and operation and system troubleshooting, the airframe manufacturer＇s masthead only shall be used; however, for unit troubleshooting and maintenance practices, both the airframe and component manufacturer＇s masthead may be used.
B、 In ＇shared interest＇ chapters for description and operation and system troubleshooting, It is recommended to use the masthead of the airframe manufacturer; however, for unit troubleshooting and maintenance practices, either the airframe or component manufacturer＇s masthead may be used.
C、 In ＇shared interest＇ chapters for description and operation and system troubleshooting, the airframe manufacturer＇s masthead only shall be used; however, for unit troubleshooting and maintenance practices, either the airframe or component manufacturer＇s masthead may be used.
答案：C
A. The output of AND gate is one when either of its inputs is logic one.
B. There is absolute no relationship between the output and input of the AND gate.
C. The output of AND gate is one only when all the inputs are logic one.
A. The usual control for the left pack ensures that it supplies air at a temperature. The temperature gives the occasional cooling for the flight compartment.
B. The normal control for the left pack makes sure that it supplies air. The cooling provides the necessary temperature for the flight compartment.
C. The usual control for the left pack assures that the temperature of the supplied air will provide the control cabin with the needed cooling.
A. Spoilers are used to enhance aircraft resistance in flight or to disrupt boost during landing and when take-off is canceled.
B. Spoilers are used to increase the aircraft drag in flight, or destroy the lift during landing and in case of aborted take-off.
C. Spoilers are used to increase the drag of the aircraft in flight, or to interrupt lift during landing land during rejected take-off.
A. 用电线把电缆固定住
B. 用电缆连接电线
C. 用铁丝把电缆固定住
A. Paper and wood belong to the combustible materials of Class A fire.
B. Hydraulic fluid, oil and fuel belong to the combustible materials of Class A fire.
C. Electrical equipment and magnesium belong to the combustible materials of Class A fire.
A. Install the cushion before you install the seat.
B. Install the seat before you install the cushion.
C. Install the seat after you install the cushion.
A. When the temperature of vent rises to 27℃, the exhaust pipe opens
B. When the ventilation temperature is above 27℃, the drain mast opens.
C. When the temperature of the ventilation air increases to 27℃, the discharge valve opens.
A. INCLUDE
B. INCLUDES
C. INCLUDING
A. You can use the past form of technical verbs as adjectives
B. You can use the past tense form of technical verbs as adverbs
C. You can use the past participle of technical verbs as adjectives.
A. In order to revise, supplement an delete the printed maternal, a perpendicular black line must be use to identify the changed portion along the margin of the page
B. Whenever the printed matter is to be revised, replenished or updated mark a black cross on the right margin of the page opposite to the changed portion.
C. A vertical black line should be drawn to make any revision, addition and deletion along the outside of the page opposite to the changed ciontents.
