620.If the airplane has a built-in auxiliary power unit, describe it and
explain how it fits in with the electrical system.

A. 　如果在测试过程中,流量指示器没有达到预定位置,则使用此备用程序。

B. 　如果在测试结束后,流量指示器没有达到设定位置,则使用此附加程序。

C. 　如果在测试结束后,流量指示器没有达到设定位置,则使用此备用程序。

A. 　可选信息,包括(但不限于)用于选择 CAP 的基本原理-如何确定 CAP 的要求。

B. 　操作信息,包括(但不限于)用于选择 CAP 的结构-怎样制定 CAP 的要求。

C. 　可选信息,包括(但不限于)用于选择 CAP 的依据-CAP 的要求是如何确定。

A. 　wash system

B. 　water system

C. 　cleaning system

A. 　应使用能产生黑白图像的打印格式来进行复制。

B. 　应使用能产生黑白图像的打印形式来进行印刷。

C. 　应使用能产生黑白图像的打印形式来进行复制。

A. 　If there is hum from the loudspeaker,don't adjust the potentiometer.

B. 　Adjust the potentiometer unless hear a hum from the loudspeaker.

C. 　Adjust the potentiometer until the loudspeaker no longer hums.

A. 　应在每本手册的后面提供页面有效性列表,也可与目录结合,或在每个系统/
章节的前面。

B. 　应在每本手册的前面提供页面有效性列表,也可与目录结合,或在每个系统/
章节的后面。

C. 　应在每本手册的前面提供页面有效性列表,也可与目录结合,或在每个系统/
章节的前面。

A. 　To include a relocated chapter table of contents is not required if
the total chapter has been relocated, while the subsystem relocations
should then be identified in the Table of Contents at the front of the
book.

B. 　On conditional that the total chapter has been relocated, to include
a relocated chapter table of contents is not important,then the subsystem
relocations should then be identified in the Table of Contents at the front
of the book.

C. 　If the total chapter has been relocated, it is not forced to contain
a relocated chapter table of contents, and the subsystem relocations
should then be identified in the Table of Contents at the front of the
book.

A. 　EJECT

B. 　SPRAY

C. 　INJECT

A. 　设置电门每秒钟三个循环

B. 　设置电门每分钟三个循环

C. 　设置电门每三分钟三个循环

A. 　within night operation, make sure the panel lights are dim.

B. 　During night operation, make sure the panel lights are bright.

C. 　During night operation, make sure the panel lights are dim.