A、 Even though this specification is conformed to recognized industry practices , it is prepared in broad genuine terms and it is recognized that problems will occur which are not handled enough by the specification.
B、 Although this specification coheres with recognized industry practices , it is written in vast general terms and it is asserted that problems will appear which are not treated sufficiently by the specification.
C、 Though this specification complies with accepted industry practice, it is compiled in wide generic terms and it is recognized that problems which are not treated adequately by the specification will arise.
答案：C
A、 Even though this specification is conformed to recognized industry practices , it is prepared in broad genuine terms and it is recognized that problems will occur which are not handled enough by the specification.
B、 Although this specification coheres with recognized industry practices , it is written in vast general terms and it is asserted that problems will appear which are not treated sufficiently by the specification.
C、 Though this specification complies with accepted industry practice, it is compiled in wide generic terms and it is recognized that problems which are not treated adequately by the specification will arise.
答案：C
A. There is a hard landing on the broken nose landing gear.
B. The landing gear has affected hard landing.
C. The nose landing gear is broken because of hard landing.
A. Make sure that there is airflow in the pipe to hinder .
B. Make sure that there is something in the pipe to block the airflow.
C. Make sure that there is nothing in the pipe to hinder airflow.
解析：这道题考察的是关于管道通风的知识。正确答案是C:Make sure that there is nothing in the pipe to hinder airflow.
在管道通风中，我们需要确保管道内没有任何堵塞物，以确保空气能够顺畅地流动。如果管道被堵塞，空气无法流通，会影响到管道的正常使用。
举个生动的例子，就好像我们的呼吸道一样。当我们呼吸时，我们希望空气能够顺畅地进入我们的肺部，如果我们的呼吸道被堵塞，比如说我们感冒时鼻子被堵住了，我们就会感到呼吸困难。所以，保持管道畅通就像是保持我们的呼吸道畅通一样重要。
A. Remove the sleeve to tighten the sliding tube.
B. Remove the sleeve to install the sliding tube.
C. Remove the sleeve to free the sliding tube.
A. In order to obtain additional clearance, gaskets may be added.
B. Additional shims may need to be added to obtain proper clearance.
C. Add special shims as necessary may vary the clearance.
A. During antenna installation, disregard the direction the alignment arrow is pointing.
B. Align the antenna in the opposite direction in consideration of the alignment arrow in installation.
C. When installing the antenna, make sure the alignment arrow is directed towards the front.
A. Apply two kindreds of protective compound to shield the sealant from any harm caused by hydraulic fluid.
B. In order to prevent damage to the sealant from hydraulic fluid, it is necessary to apply two layers of protective compound.
C. To prevent hydraulic fluid from drowning the sealant, it is recommended to apply two layers of protective compound.
A. Utilize an oil-free solution.
B. Use a solution with oil.
C. The oil is not used that contains a solution.
A. The function of the portable water system is to store and send drinking water to the passengers.
B. The potable water system must keep and transfer the water to the toilet for washing only.
C. The purpose of the drinking water system is to store and deliver the water for drinking.
解析：解析：这道题考察的是客车的车钩采用的是什么装置。鞍式复原装置是用于铁路机车的一种装置，用于连接车辆。而客车的车钩通常采用的是自动钩挂装置或者其他类型的连接装置，因此新造客车的车钩不会采用鞍式复原装置，所以答案是错误。
生活中，我们可以通过类比来理解这个知识点。就好比我们平时乘坐的公交车或者地铁，车厢之间连接的部分通常是通过自动钩挂装置来连接的，而不是铁路机车上使用的鞍式复原装置。这样就更容易理解客车的车钩不会采用鞍式复原装置这个观点了。
A. The emergency procedures check list should be in precise form. The list not only tells pilots which items to check, but also provides everything about operation details of systems.
B. The emergency procedures check list should be in complicated form. The list tells pilots which systems to be investigated. It also provides operation details of some systems.
C. The emergency procedures check list should be in brief form. The list tells pilots which items to be examined. It provides nothing about operation details of any system.
A. Be careful when you put your hand onto printed circuit boards.
B. Be careful when you get close to printed circuit boards.
C. Be careful when you remove printed circuit boards.
