506.Remove oil and grease with a degreasing agent.

A. Make an estimate of the necessay quantity.

B. Make a record of the necessary quality.

C. Make a note of the necessary quality.

A. 基本上,它是以对飞行员最有用的形式来呈现已被证明的概念的行业标准化指南。

B. 基本上,它是一个指导行业标准化的证明概念,以一种最有用的形式提供给飞行员。

C. 基本上,它是一个证明行业标准化概念的指南,并提供一种对飞行员最有利的形式。

A. 当需要了解膜片时,使用箭头指示方向。

B. 必要时应使用箭头表示流向来理解原理图。

C. 利用箭头指示的方向来理解线路施工图。

A. The System/Chapter,sub-System/Section and Subject Number,the page number and date of issue will disappear in the lower left-hand corner, on the left-hand pages and the review date in the lower right-hand corner.

B. The System/Chapter,sub-System/Section andSubject Number,the pagenumberand dateofissuewillappearinthe lowerleft-handcorner,ontheleft-hand pagesandthe reviewdate inthelowerright-handcorner.

C. The System/Chapter,sub-System/Section andSubject Number,the pagenumberand dateofpublicwillappearinthe lowerleft-handcorner,ontheleft-hand pagesandtherevision dateinthelowerright-handcorner.

A. Station shows the height along the fuselage between the reference datum and the position in inches.

B. Station is the distance of a point of fuselage to the location of reference datum along the centerline in centimeters.

C. Station means a position along the fuselage measured in inches from the reference datum.

A. Use the upper latch mechanism to lock the lower display unit in the middle.

B. The latch mechanism at the top is used to secure the center display unit on the bottom.

C. The center lower display unitis installed with the latch mechanism at the top.

A. According to the "GAMA Specification No.1",compile the Pilots Operating Handbooks.

B. Prepare Pilots Operating Handbooks through "GAMA Specification No.1".

C. Edit "GAMA Specification No.1",in accordance with Pilots Operating Handbooks.

A. 获取一桶燃油,并做一项含水量测试。

B. 取一份燃油样品,并进行一项水污染测试。

C. 获取一份燃油资料,并分析水含量。

A. 该计算机控制风扇气流以防止喘振。

B. 该计算机控制燃烧室气流以防止过热。

C. 该计算机控制压气机气流以防止失速。

A. 该任务通过调节变频起动机发电机空气/油热交换器上的空气控制活门不工作状态使飞机恢复到正常状态。

B. 在变频起动机发电机空气/油热交换器上的空气控制活门不工作的情况下,该任务在操作后使飞机恢复到正常状态。

C. 该任务使变频起动机发电机空气/油热交换器上的空气控制活门失效状态恢复,从而使飞机恢复到操作后的通常状态。

D. C.该任务使变频起动机发电机空气/油热交换器上的空气控制活门失效状态恢复,从而使飞机恢复到操作后的通常状态。