39.The flow of fluid through the valve must be continuous.

2631.飞机性能数据应以图或表显示。

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.

2790.The yaw damper works by sensing any yaw motion and then applying corrective inputs to the aircraft's rudder to reduce or eliminate any unwanted yawing.It is particularly useful in minimizing the effects of turbulence or other external disturbances that can cause yawing and make the aircraft harder to control.The yaw damper is an important safety feature that helps to improve the overall stability and control of the aircraft,especially during critical phases of flight such as takeoff and landing.

A. 偏航阻尼器通过感受偏航动作然后将正确的信号输给方向舵来减轻和消除不希望出现的偏航。它在减少尾流和其他外部干扰的影响中很有用,气流和外部干扰使飞机难以操控。偏航阻尼器也是一个改进飞机稳定性和操作性的重要安全特征尤其是在起飞和着陆等关键阶段。

B. 偏航减震器通过感受偏航动作然后将正确的信号输给方向舵来减轻和消除不希望出现的偏航。它在减少气流和其他外部干扰的影响中很有用,气流和外部干扰使飞机难以操控。偏航减震器也是一个改进飞机稳定性和操作性的重要安全装置尤其是在起飞和着陆等关键阶段。

C. 偏航阻尼器通过感受偏航动作然后将修正的信号输给方向舵来减轻和消除不希望出现的偏航。它在减少湍流和其他外部干扰的影响中很有用,气流和外部干扰使飞机难以操控。偏航阻尼器也是一个改进飞机稳定性和操作性的重要安全装置尤其是在起飞和着陆等关键阶段。

1931.This document shall specify,for a crack inspection,the minimum size crack expected to be discovered or,if no minimum is defined,a statement to this effect.

A. This document shall clearly states the minimum size crack you may discover in a crack inspection.If no minimum is defined,it shall have a statement that has the same effect.

B. This document shall specify the minimum allowed crack size expected to be discovered for a crack inspection or,if no minimum is defined,an equally valid standard.

C. The minimum crack size you are going to discover during a crack inspection shall be included in this document.However,if you could not set forth a standard,a statement shall take place.

23.Bleed the system before you disconnect the components.

A. 拆除部件之前,给系统充气。

B. 安装部件之前,给系统释压。

C. 断开部件之前,给系统放气。

3030.在正常或异常的情况下,这些指令是必需的,例如从柔软的地面、湿滑的或结冰的表面上拖拽飞机并且在发动机被拆除或飞机损坏的状况下。

A. These instructions are required for towing aircraft in normal or abnormal conditions,such as from soft ground,wet or icy surfaces and in the case of engine is removing or aircraft is damaging.

B. These instructions are necessary for towing the aircraft under normal or abnormal conditions,such as from a wet or icy surface on a soft ground and when the engine is removed or the aircraft is damaged.

C. These instructions are necessary to tow or push the aircraft in normal or abnormal conditions such as towing from soft ground and slippery or icy surfaces,with engines removed,or aircraft damaged.

418.Put the removed part on a clean surface.

A. 把损伤的零件放在干净的地方。

B. 把拆下的零件放在隔离的表面上。

C. 将拆下的零件放在干净的表面上。

1626.Outside Air Temperature is obtained either from inflight temperature indications or ground meteorological sources.

A. 外部气温受空中温度指示或地面气象源影响而变化。

B. 外部气温在空中由空中温度指示提供,在地面则由地面气象源提供。

C. 外部气温可以通过空中温度指示或地面气象源获取。

463.Words often have many different meanings in English.

A. 单词在英语中通常有许多不同的意思。

B. 词组在英语中通常有许多难的意思。

C. 单词在英语中通常有许多难的含义。

971.如果征候再次出现,请拆下装置。

A. If the values occur again,remove the unit.

B. If the symptoms occur again,remove the unit.

C. Remove the unit,until the symptoms occur again.

498.Put on protective clothing when you use the solvent.

A. 使用危险品时穿上防护服。

B. 使用溶剂时穿上防护服。

C. 使用易感染物品时穿上防护服。