Discard all seals which are unsatisfactorily bonded.

A. In STE, a unit started with "topic sentence" is to instruct the main topic.

B. The "topic sentence" starts to tell the readers the topic of the paragraph in STE.

C. In STE, a paragraph starts with a “topic sentence” which tells the reader what the topic of that paragraph is.

A. Use a degreasing agent to remove oil and grease.

B. Draw oil and grease from a degreasing agent.

C. Add oil and grease into a degreasing agent.

A. Inspect the fairing completely.

B. Do a detailed visual inspection of the fairing.

C. Inspect the whole fairing.

A. 降低天线以获得钢索接头。

B. 降低天线以接近电缆接头。

C. 降低风向标以接近钢索接头。

A. 维护手册中的这一部分内容涵盖发动机更换、试车、内部安装的动力装置零件等主题，而在大修手册中，将涵盖动力装置的安装、拆卸等主题。

B. 维护手册中的这一部分应涵盖发动机更换、试车、外部安装的动力装置备份等内容，而大修手册中应涵盖动力装置装配和拆解等节。

C. 维护手册中的这一部分内容将涵盖发动机更换、测试、外部安装的零用动力装置等主题，而在大修手册中，将涵盖动力装置的制造、拆卸等主题。

A. Paint the fasteners with oil.

B. Apply the fasteners greasy.

C. Apply grease to the fasteners.

A. This data sheet defines that the product, published by the type certificate, satisfies the airworthiness necessities complying with the conditions and limitations.

B. The product, for which the type certificate was approved, should reach the airworthiness requirements within conditions and limitations stipulating by this data sheet.

C. This data sheet regulates conditions and limitations of the airworthiness demands that the product, which has the qualified type certificate, should fulfill.

A. 在接近跑道的过程中，航向指示器中的偏离指示器指示飞行员飞机必须飞行的方向。

B. 在接近跑道的过程中，航向指示器中的方向指示器指示飞行员飞机必须飞行的方向。

C. 在进近着落的过程中，航向指示器中的方向指示器指示飞行员飞机必须飞行的方向。

A. Distances shown are based on weak wind.

B. Distances shown are developed with no wind.

C. Distances shown are on the basis of gentle wind.

A. 拧紧螺栓时使用不同的措辞。

B. 使用不同的扳手拧紧螺栓。

C. 拧螺栓时使用不同的扭矩。