A、 When there are too many positive or subtractive pressure in the fuel tanks,the pressure relief valve eliminates damage to the wing structure.
B、 When there is too much plus or minus pressure in the fuel tanks,the pressure relief valve previews damage to the wing structure.
C、 The pressure relief valve prevents damage to the wing structure when there is too much positive or negative pressure in the fuel tanks.
答案：C
A、 When there are too many positive or subtractive pressure in the fuel tanks,the pressure relief valve eliminates damage to the wing structure.
B、 When there is too much plus or minus pressure in the fuel tanks,the pressure relief valve previews damage to the wing structure.
C、 The pressure relief valve prevents damage to the wing structure when there is too much positive or negative pressure in the fuel tanks.
答案：C
A. Use protective goggles when you do work on fire extinguishers.
B. Ensure that you wear protective clothes while performing tasks on fire extinguishers.
C. Use protective gloves when working on fire extinguishers
A. Use of cabin pressurization during Takeoff, landing, or in flight shall be carefully restricted.
B. Use of cabin pressurization during Takeoff, landing, or in flight has limitations that shall be observed.
C. You shall follow the strict requirements when using cabin pressurization during Takeoff, landing, or in flight.
A. When the required maintenance procedure is not very long and fairly simple, the above combination can be grouped under a title which is called maintenance practice.
B. When the required maintenance procedure is not lengthy and is relatively simple, a combination of the above may be grouped under one heading and called maintenance practices.
C. When the required maintenance procedures are not very long and comparatively simple, the above combinations can be bound under one subject, calling maintenance practices.
A. 在容易腐蚀的区域投入使用复合材料来阻止腐蚀过程。
B. 在受影响的区域投入使用防腐化合物来阻止腐蚀进程。
C. 在被影响的区域投入使用防腐化合物来彻底阻止腐蚀。
A. Do not install 0.1 mm thick shims.
B. Do not install shims which are more than 0.1 deep.
C. Do not install shims that are more than 0.1 mm thick.
A. 向反方向移动杆。
B. 逆时针移动杆。
C. 移动杆至对应方向。
A. The fairway and the runway centerline should align .
B. The localizer course is aligned with the centerline of the runway.
C. The localizer aligns with the center of the runway.
A. AD describes corrective action, e.g. inspection, repair or maintenance, which may be listed by AD or included in another document, e.g. manufacturer＇s Service Bulletin that acts as reference in the AD.
B. The corrective action prescribed by the AD, such as an inspection, repair, or modification, may be detailed in the AD itself or may be contained in another document, such as manufacturer＇s Service Bulletin, which is referenced in the AD.
C. AD details the requirements for inspection, repair or modification described in corrective action, or it may be contained in another document, such as Service Bulletin referenced in AD.
A. 机组能用飞行指令需求来控制飞机的姿态。
B. 机组能用飞行指引指令来控制飞机的高度。
C. 机组能用飞行指引指令来控制飞机的姿态。
A. Using a locally made tool to do the test is also accepted.
B. You can also make a local tool to do this test.
C. You can also make a tool to do this test locally.
