Drain approximately 2 litters of fuel from the tank.

A. If the failure takes place occasionally, the system need to be tested.

B. If there is a failure that seldom take place, do a system test.

C. If the failure occurs frequently, do a system test.

A. 故障隔离手册提供信息用于识别，定位和修正任何故障,并需要放在飞机上。

B. 故障隔离手册提供用于识别的信息来定位和纠正可能在飞机上发生的任何故障的信息。

C. 故障隔离手册提供用于识别、定位和纠正可能在飞机上发生的任何故障的信息。

A. 这是一个很好的喷漆方案。

B. 这是一个很好的除漆程序。

C. 这是一个很好的调色计划。

A. Airline performance data shall be presented in either graphical or tabular formats.

B. Airplane performance data shall be presented in either graphical or tabular formats.

C. Airplane restriction data shall be presented in either graphical or tabular shapes.

A. 气缸盖、排气（涡轮进口）温度等能通过发动机温度系统显示。

B. 发动机温度系统包括气缸盖、排气（涡轮进口）等，用于显示发动机温度。

C. 发动机温度系统用于指示发动机不同位置的温度，包括气缸盖温度、排气（涡轮进口）温度等。

A. 该符号指该章节的全部或大部分规则。

B. 该索引指本部分的全部大部分规则。

C. 该内容包括那个部门的全部或大部分规则。

A. The CAP compiler should determine the format and layout, it is desirable that the format and layout should be similar to the compiler＇s current documents.

B. The format and layout should be determined by the CAP producer, it is intended that the format and layout shall be similar to the producer＇s existing files.

C. The format and layout should be determined by the CAP producer, recognized that it is desirable the format and layout should be the same as the producer＇s existing documentaries.

A. 门是由碳纤维复合塑料制成的。

B. 门的主要成分是碳纤维复合材料。

C. 门是由碳纤维增强塑料制成的。

A. A word in lowercase letters is unapproved in STE.

B. A word in bold letters is unapproved in STE.

C. A word in uppercase letters is not approved in STE.

A. Detach the connection of the valve in the direction opposite to the flow.

B. Detach the connection of the upstream valve.

C. Detach the connection of the valve in the direction identical to the flow.