A、 Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and tolerances ordinarily established for overhaul, or major maintenance periods.
B、 Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and errors ordinarily established for overhaul, or significant maintenance periods.
C、 Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and tolerances ordinarily established for overhaul, or significant maintenance periods.
答案：A
A、 Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and tolerances ordinarily established for overhaul, or major maintenance periods.
B、 Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and errors ordinarily established for overhaul, or significant maintenance periods.
C、 Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and tolerances ordinarily established for overhaul, or significant maintenance periods.
答案：A
A. 如果仅仅损坏了轮胎中间表面，轮胎还是可用的。
B. 如果损伤是胎间见线，轮胎需要更换。
C. 如果损伤只局限于胎面中部，轮胎是可用的。
A. 飞机通信系统的组件和部件提供一种方式使得通信可以发生在飞机不同区域之间、飞机与飞机之间、地面台与地面台之间。
B. 飞机通信系统的组件和部件提供一种方式使得通信可以发生在飞机不同区域之间、飞机与飞机之间、飞机与地面台之间。
C. 飞机通信系统的组件和部件提供一种方式使得通信可以发生在飞机一个区域与另一个飞机之间、飞机与飞机之间、地面台与地面台之间。
A. If your decision is not to change the unit, monitor its temperature at least 15 rotations.
B. If you decide not to renew the unit, supervise its temperature at least 15 periods.
C. If your decision is not to replace the unit, monitor its temperature for a minimum of 15 cycles.
A. 这种物质在高浓度时是有毒的。
B. 在高度浓缩后，这种材料会有毒。
C. 这种材料在高温下会易燃。
A. The primary cause of valve failure is contamination of the hydraulic fluid.
B. The primary cause of valve failure is poisonousness of the hydraulic fluid.
C. The primary element of valve failure is contamination of the hydraulic fluid.
A. 该组件分配和过滤油液。
B. 该组件增压和过滤油液。
C. 该组件增压和旁通油液。
A. 用密封剂填充补片及相邻结构之间的缝隙。
B. 用密封剂填充补片的缝隙，并粘接相邻结构。
C. 在附近的密封结构和补片之间留出空隙。
A. 这个笔记本电脑有三个备用部件。
B. 笔记本电脑有三个主要部分。
C. 这个螺钉有三个主要部分。
A. 当自动驾驶连接时，能从口语警告模块听到口头警告。
B. 当自动飞行断开时，能从口语警告模块听到口头警告。
C. 当自动飞行断开时，能从听觉警告模块听到听觉警告。
A. A mixture of fuel and oxygen can cause an explosion.
B. Fuel and oxygen react with each other to cause explosion.
C. A mixture of fluid and oxygen can be set on fire.
