确保襟翼位置对称。

A. An inoperative pump will be identified by a decontaminated filter.

B. Contaminated filter elements indicate a defective pump.

C. If filter elements are clean , the filter elements are inoperative.

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. 解释如何避免和注意燃油消耗。

B. 解释如何避免和注意燃油污染。

C. 解释如何避免和注意燃油泄漏。

A. The maximum distance between the plate edge and the frame is inferior to 0.05 mm.

B. The clearance between the boundary of the panel and the bay can not exceed 0.05 mm.

C. The distance between the edge of the panel and the partition must not be more than 0.05 mm.

A. To work with electrical cable, we need tools specifically vattmeter, amperemetres and ohm meters.

B. To work with electrical cable, vattmeter, amperemetres and ohm meters are helpful tools.

C. In order to work with electrical circuit, we need tools specifically voltmeter, amperemetres and ohm meters.

A. Thus, the more words there are in a cluster, the more difficult it is to understand.

B. Therefore, the more words are there in a phrase, the more difficult it is to understand.

C. So, the more nouns in a phrase, the harder it is to understand.

A. 子段落和其从属信息，如图表列表，会显示在本部分的内容清单中。

B. 在本部分的目录中会展示次段落的相应信息，譬如数据列表。

C. 分段和其它相关信息，例如图表清单，可在本节的目录中显示。

A. 给液压系统增压。

B. 给液压系统释压。

C. 给燃油系统释压。

A. This section of the pilot＇s manual should clearly and confusedly provide recommended procedures for conducting normal operations.

B. The recommended procedures for conducting normal operations shall be described in this Section of the Pilot＇s Operating Handbook clearly and accurately.

C. The recommended procedures shall be stated in this Section of the Pilot＇s Operating Handbook clearly and fuzzily for the conduct of normal operations.

A. 用标记识别曲柄和轴，以防止安装错误。

B. 用标记识别曲柄和轴，以阻止安装错误。

C. 用标记识别手柄和轴承，以防止安装错误。