A、 It is standard to do the procedure in this service bulletin.
B、 It is necessary to do the procedure in this service bulletin.
C、 It is mandatory to do the procedure in this service bulletin.
答案：C
A、 It is standard to do the procedure in this service bulletin.
B、 It is necessary to do the procedure in this service bulletin.
C、 It is mandatory to do the procedure in this service bulletin.
答案：C
A. The removal of the piston is involved in the steps
B. The removal of the piston is not included in the procedure
C. The procedure eliminates the piston
A. 清除导致管子破裂的异物
B. 拆除堵塞的管路
C. 清除导致管子堵塞的污物
A. All ground equipment that is removed is not necessary.
B. Remove all ground equipment as necessary.
C. Move away all unnecessary ground equipment.
A. 按要求把喷射器组件的喷嘴安装在APU进气道内。
B. 按要求把喷射器组件的接头安装在APU进气道内。
C. 按要求把作动器组件的喷嘴安装在APU进气道内。
A. 改变面板的位置。
B. 将面板移动到位。
C. 将脚蹬移动到位。
A. Under each section, in order of probability, list the unit conditions that may be causing the trouble.
B. Under each section, list the possible causes of the problem by rank of failure.
C. Under each section, list each condition causing the problem, in the order in which the part works.
A. The computer gets this data from five sensors.
B. The computer gets this date from five sheets.
C. The computer gets this data from five source.
A. The fuselage includes skin, stringers, frames, floor beams, floor, tail cone, and fuselage to wing and tail fittings, etc.
B. The fuselage includes skin, frames, stringers, floor beams, floor, tail cone, and fuselage to wing and empennage fillets, etc.
C. The fuselage includes skin, beams, stringers, floor frames, floor tail skid, and fuselage to wing and rear fairings ,etc.
A. Decide which hydraulic system you will pressurize.
B. The pressurized hydraulic system is the best.
C. Check the hydraulic system that you will pressurize.
A. The maximum allowable difference is 5 mm.
B. The maximum allowable error is 5mm.
C. The maximum permitted diffrence is 5mm.
