A、 These must be shown on the wiring diagram under some specific conditions and wires are colour coded.
B、 Wires are coded in color in certain condition and these should be marked on the wiring diagram.
C、 In some cases, wires are color coded and these should be indicated on the wiring diagram.
答案：C
A、 These must be shown on the wiring diagram under some specific conditions and wires are colour coded.
B、 Wires are coded in color in certain condition and these should be marked on the wiring diagram.
C、 In some cases, wires are color coded and these should be indicated on the wiring diagram.
答案：C
A. It includes items such as audio selector control panel, microphones, head phones, cockpit loud speakers, etc.
B. It includes items such as automatic selector control panel, interphones, head phones, cockpit loud speakers, etc.
C. It includes items such as audio selector control panel, microphones, head phones, cockpit speakers, etc.
A. The manufacturer shall prepare all text in either one or two columns with justification at his own discretion , but, two columns are preferable for readability.
B. Manufacturers shall prepare all text both in one and two columns separately; however, two columns are better for reading.
C. According to the manufacturer＇ explanations, all text shall be prepared in one or two columns; however, two columns have better visual effect.
A. When you move the alternate nose wheel steering switch to the alternate position, the landing gear transfer valve moves to the alternate position. The landing gear transfer valve moves the pressure source for the landing gear retraction and the nose wheel
B. When move the alternate switch to steer the nose wheel to the alternate position, the landing gear transfer valve moves to the alternate position. The landing gear transfer valve moves the pressure source from hydraulic system A to hydraulic system B duri
C. When moving the alternate nose wheel steering switch to the alternate position, the landing gear transfer valve moves to the alternate position. The landing gear transfer valve removes the pressure source from the landing gear retraction and the nose whe
A. If the wheel temperature reaches as high as 177 deg., the core of safety plug shears off and the tire slips.
B. If the wheel temperature increases to more than 177 deg., the core of the fusible plug melts and the tire deflates.
C. The core of the filter element melts once the wheel temperature is above 177 deg., causing the tire to deflate.
A. 确保飞机中心线每侧的燃油负载相等。
B. 确保飞机中心线两侧的燃油供给量相等。
C. 确保飞机中心线两侧的燃油流量相同。
A. Most material of the radar scope is fiberglass.
B. Most of the material in the radome is fiberglass.
C. Most of the material in the radar cap is fiberglass.
A. 使用“降低”更好，因为它描述的是压力，而不是控制压力的指示器 。
B. 使用“降低”更好，因为它描述的是压力，而不是监测压力的指示器。
C. 使用“增加”更好，因为它描述的是压力，而不是监测压力的指示器。
A. 描述飞机燃油系统时，应阐述燃油进风系统及其堵塞的后果。
B. 描述飞机燃油系统时，应描述燃油通气系统及其堵塞时的后果。
C. 描述飞机燃油系统时，应阐述燃油进气系统以及允许其堵塞的重要性。
A. 可以通过使用抹布沿钢索擦拭的方法，实现对钢索关键疲劳区域的仔细检查。
B. 可以通过沿电缆缠绕碎布的方式来对电缆关键疲劳区域进行仔细检查。
C. 在钢索严重疲劳区域进行近距离检查，可沿钢索用棉布清洁。
A. If you find metal particles in the reservoir, find their source and repair the broken part.
B. If you find metal particles in the pump, find their source and repair the defective part.
C. If you find material particles in the pump, find their source and repair the damaged part.
