15.Once a symbol or device is established for a valve or control,it shall be used for this type of unit throughout the manual.

A. 　Divide the headwind component by the aircraft speed to get the correction

B. 　Divide the crosswind component by the air speed to get the correction.

C. 　Divide the crosswind component by the aircraft speed to get the correction.

A. 　规范中包含一些新的材料和方法。

B. 　规范中几乎没有包含什么新材料或新方法。

C. 　规范中既不包含新材料,也不包含新方法。

A. 　工作准备总是第一个步骤,收尾或收工是最后一个步骤。

B. 　工作准备总是第一个步骤,收尾或收工是接下来的步骤。

C. 　第一个步骤有时是工作准备,收尾或收工是接下来的步

A. 　For simplicity of presentation and understandability,complex system should be divided into either system function overall master schematic diagrams.

B. 　Both master schematic diagrams and system function of complex system should be grouped for smiplicity of presentation and understandability.

C. 　Complicated systems shall be divided into system function but not,overall master schematic diagrams fbr homeliness and a better understanding of presentation.

A. 　如果调节止动不正确,而试结果将不准确。

B. 　如果调节止动未修正,测试结果将不准确。

C. 　如果止动点调整不正确,而试结果将不准确。

A. 　检查时间将根据一些问题进行调整。

B. 　针对严重问题将调整检査次数。

C. 　针对严重问理将延长检査时间。

A. 　In order to make airplanes have long lives,they are often in good condition.

B. 　To make airplanes have long lives,it is necessary to ensure their flight safety.

C. 　Because the long lives of airplanes are required,make sure the mechanics do the maintenance task correctly.

A. 　为了实现本规范的目、规行业范标内准化容和的编持续排规适范航,方以案提。供一致的

B. 　为了实现本规范的目标范内容和编排规范,以提供一致的、行业标准化的持续适航方案。

C. 　为了实现本规范的目标(提高安全性、减少工作、降低成本),各制造商应合理遵守(规范)内容和编排规范,以提供一致的、行业标准化的持续适航方案。

A. 　在器。支架反向的位置上放置适配

B. 　放置适配器的位置背向支架。

C. 　将适配器紧靠在支架上。

A. A.Pressurize the system to 150 bar with the hydraulic pump.

B. B.Pressurize the system to 150 bar with the hand pump.

C. C.Pressuring the system to 150 bar with the hand pump.