A、 A brush is cleaned by the filter element.
B、 The filter element and a brush are clean.
C、 Use a brush to clean the filter element.
答案：C
A、 A brush is cleaned by the filter element.
B、 The filter element and a brush are clean.
C、 Use a brush to clean the filter element.
答案：C
A. If the first coat is damaged, do a repair.
B. If the protective finish is damaged, do a repair.
C. If the primer layers are damaged, do a repair.
A. Do not omit articles to make the sentence shorter, because this can cause ambiguity.
B. Do not make the sentence shorter to omit articles, because this can cause ambiguity.
C. Do not omit articles to avoid ambiguity, because this can make the sentence shorter.
A. 本手册提供了基本的控制和操作信息，这些信息描述飞机部件如何被控制，如何操作这些部件，以及所有特殊操作程序和操作限制。
B. 该手册提供基本控制和操作信息，描述飞机部件的生产控制工艺，包括适用的特殊生产步骤和公差值。
C. 本手册提供了基本的控制和操作信息，描述飞机部件的控制方式和工作方式，且包括所有适用的特殊程序和限制条件。
A. The airworthiness problem needs to be resolved by the way any other airplane does in the operator＇s fleet has equal or more damaging corrosion, and it has to be done before the regular check of that zone.
B. The airworthiness problem needs immediate action ahead of the next planning inspection of that zone, because it would probably occur on another plane in the operator＇s fleet, causing equivalent or more serious corrosion.
C. Due to any other airplane in the operator＇s fleet could have the comparable or more vital corrosion, the airworthiness problem should be investigated immediately before the next periodic inspection of that zone.
A. The fuselage is a semi-monocoque structure.
B. The fuselage is a demi-plate.
C. The airframe is of half-shell structure.
A. Section 1 of the Pilot＇s Operating Handbook shall introduce basic data and information of general interest to the pilot. The data and information is useful in loading, sheltering, handling, and routine preflight checking of the airplane.
B. Section 1 of the Pilot＇s Operating Handbook shall present basic data and information of general interest to the pilot. The general interest is useful in loading, sheltering, handling, and routine preflight checking of the airplane.
C. Section 1 of the Pilot＇s Operating Handbook shall present basic data and information of general interest to the pilot. The pilot is useful in loading, sheltering, handling, and routine preflight checking of the airplane.
A. 这意味着对部件和设备周围区域的检查将包括使用观察和评估的方式。
B. 这意味着检查将包括对部件周围的区域进行的观察和评估，以及对设备的检查。
C. 这意味着检查将包括对部件及设备周围区域进行的观察和评估。
A. If as many as 50% of the holes are contaminated, you should clean the display units behinds the holes.
B. The holes on the bottom of the display unit should be cleaned once over 50% of them are clogged due to contamination.
C. If contamination causes a blockage of more than 50 percent of the holes, then clean the holes on the rear of the display units.
A. 如果B系统释压，液压动力传感组件系统就是一个提供备用压力到前缘襟翼和缝翼以及自动缝翼系统的液压马达泵组件。
B. 液压动力转换组件系统是一个液压马达泵组件，在系统B释压时，为前缘襟翼和缝翼以及自动缝翼系统提供备用压力。
C. 如果B系统增压，液压动力传感组件系统就是一个提供备用压力到前缘襟翼和缝翼以及自动缝翼系统的液压马达泵组件。
A. The tune time for a frequency not in memory is 2 to 4 seconds typical, 7 seconds maximum.
B. The adjust time for a frequency not in memory is 2 to 4 seconds typical, 7 seconds maximum.
C. The tune time for a frequency not in memory is 2 to 4 seconds common, 7 seconds maximum.
