给电瓶充电。

A. The function and operation of each unit in the system should be described. The location of the units shouldn’t be described.

B. The function, operation and location of each unit in the system should be deleted.

C. The function, operation and location of each unit in the system should be described.

A. 删除某些规则，并将其概念包含在其他规则中。

B. 删除某些规则，并将其细则包含在其他规则中。

C. 删除某些尺寸，并将其概念包含在其他尺寸中。

A. Add a bracket if necessary.

B. Add a fastener if necessary.

C. Add a washer if necessary.

A. 把螺帽拧松一圈。

B. 拧紧螺帽半圈。

C. 拧紧螺帽一圈。

A. The numbering of paragraphs and subparagraphs within a section is not required.

B. No numbers of paragraphs and subparagraphs is required in a section.

C. The numeral order of the paragraphs and subparagraphs is unnecessary in a section.

A. 为了简化表示和便于理解，应将复杂的系统分为系统功能，而非总体主原理图。

B. 为了充分展示和理解，应将复杂系统分解成子系统，而非总体主图表。

C. 为了演示方便和便于理解，复杂系统应简化为系统功能，而不是总体主图表。

A. Clean all lint, dust and debris from the ventilation holes located on the aft side of the captain＇s primary flight, navigation, and center lower engine display units.

B. Clean the vent holes behind the captain＇s primary flight, navigation and lower middle engine display units which are blocked by lint, dust and debris.

C. The captain＇s primary flight, navigation, and center lower engine display units must be cleaned since the ventilation holes behind them are clogged by lint, dust and debris.

A. 安装在发动机上的伺服燃油加热器连接在发动机滑油/燃油热交换器上。

B. 伺服燃油加热器安装在发动机滑油/燃油热交换器上。

C. 发动机滑油/燃油热交换器安装在伺服燃油加热器上。

A. 灯只会在300节速度下亮起。

B. 在超过300节的速度时，灯会亮起。

C. 在大约300节的时候灯就会亮。

A. 对2号引擎进行排故。

B. 对2号发动机进行大修。

C. 对2号发动机进行校验。