禁止使用可能造成航空器表面损伤的任何工具

THE YELLOW HYDRAULIC SYSTEM IS NORMALLY PRESSURIZED BY:

THE COMPLETE PROBE HEAT SYSTEM INCLUDES:

THE WING LEADING EDGE ANTI-ICED SECTIONS ARE:

THE ELECTRONIC INSTRUMENT SYSTEM (EIS) INCLUDE:

THE EIS COMPRISES SEVERAL SYSTEM COMPUTERS, THESE COMPUTERS ARE:

THE MAXIMUM STORAGE CAPACITY OF THE DIGITAL FLIGHT DATA RECORDER (DFDR) IS:

THE TAXI AND TAKE-OFF LIGHTS ARE INSTALLED ON:

HOW MANY NAV LIGHT ARE INSTALLED ON EACH WING TIP?

ON THE A320, THE NUMBER OF POTABLE WATER DRAIN PANELS FITTED ON THE AIRCRAFT IS:

A320飞机，基本代码400是代表哪一区域？