A、 When the required maintenance procedure is not very long and fairly simple, the above combination can be grouped under a title which is called maintenance practice.
B、 When the required maintenance procedure is not lengthy and is relatively simple, a combination of the above may be grouped under one heading and called maintenance practices.
C、 When the required maintenance procedures are not very long and comparatively simple, the above combinations can be bound under one subject, calling maintenance practices.
答案：B
A、 When the required maintenance procedure is not very long and fairly simple, the above combination can be grouped under a title which is called maintenance practice.
B、 When the required maintenance procedure is not lengthy and is relatively simple, a combination of the above may be grouped under one heading and called maintenance practices.
C、 When the required maintenance procedures are not very long and comparatively simple, the above combinations can be bound under one subject, calling maintenance practices.
答案：B
A. 在伸缩管和缝翼输送管的开口端盖上堵盖。
B. 在伸缩管和缝翼输送管的末端打开堵盖。
C. 在防冰管和缝翼输送管的末端打开堵盖。
A. This specification provides broad general command for preparing handbooks for all types of general aviation airplanes authorized under applicable regulations.
B. This specification provides broad general instructions for preparing handbooks for all types of general aviation airplanes certificated under applicable regulations.
C. This specification provides broad general glimpse for preparing handbooks for all types of general aviation airplanes approved under applicable regulations.
A. During an in-flight start, the EEC selects either ignition exciter to get power.
B. If the engine need to start in flight, the EEC will selects both ignition exciters to get power.
C. During an in-flight start, one ignition exciter is active and the other one standby.
A. Clean the surface with a soap and clean a water solution.
B. Use a soap-and-water solution to clean the surface.
C. Use a soap to clean the surface and a water solution.
A. Deflate the system before you disconnect the components.
B. Bleed the system before you disconnect the components.
C. Bleed the system before you interrupt the components.
A. 确保驾驶舱的滑动门关闭。
B. 确保驾驶舱的侧窗闭合。
C. 确保驾驶舱的活动窗关闭。
A. During the operation, please be careful not to pierce the hydraulic oil tank.
B. During the operation, pay attention not to punch the hydraulic reservoir.
C. During the procedure, take care not to puncture the hydraulic reservoir.
A. Each surge tank has a vent scoop and pressure relief valve on its access door.
B. The vent scoop and pressure relief valve each has an access door in the surge tank.
C. The surge tank has a vent scoop and pressure relief valve on each access door.
A. 缓慢增加压力(每分钟不少于过一圈)
B. 缓慢释放压力(每分钟不超过一圈)
C. 缓慢增加压力(每分钟不超过一圈)
A. 确保单向活门上的箭头指向远离地面供气管方向。
B. 确保关断阀门上的箭头指向远离地面供应弯管方向。
C. 确保调节阀门上的箭头指向偏离地面供应通道方向。
