A、 Put sealant around each screw hole.
B、 Seal each screw hole.
C、 Put each screw hole into sealant.
答案：A
A、 Put sealant around each screw hole.
B、 Seal each screw hole.
C、 Put each screw hole into sealant.
答案：A
A. See the graphics for information of the solenoid valves which shall contain a note indicating the position of the valve (whether spring-loaded to its open or closed position).
B. Solenoid valves indicated on the schematic shall have a notation indicating when the valve shall be spring-loaded to the open or closed position.
C. Solenoid valves shall be indicated on the schematic and shall include a notation indicating whether the valve is spring-loaded to the open or closed position.
A. 不要给螺栓施加过大力矩。
B. 安装螺栓时不要用太大的力。
C. 不要用太大的力来拧紧螺栓。
A. 不要让清洁剂接触带有瑞尔森（Rilsan）涂层的零件。
B. 不要使用含氯的溶剂清洁带有瑞尔森（Rilsan）涂层的零件。
C. 不可以使用含氯的瑞尔森（Rilsan）溶液清洁带有涂层的零件。
A. 本节必须明确型号合格证所要求的每个自愿更换时间、结构检查时间以及相应的结构检查程序。
B. 本节必须明确机型证书所要求的每个自主更换时间、结构检查周期以及相关结构检查程序。
C. 本节必须明确型号合格证所要求的每个强制更换时间、结构检查间隔以及相关结构检查程序。
A. 燃油系统指发动机以外储存燃油、给发动机配送及输回燃油的装置和部件。
B. 滑油系统指那些储存滑油，并把滑油送往发动机以及从发动机回油的相关外部组件和部件。
C. 滑油系统指发动机内储存润滑油和运输润滑油的装置和部件。
A. Propeller governor is a device that adjusts the speed of the engine or propeller by increasing or decreasing the clearance of the propeller through the clearance changing mechanism on the propeller hub.
B. Propeller governor is the device that regulates the rpm of the engine or propeller by increasing or decreasing the propeller pitch, through a pitch change mechanism in the propeller hub.
C. Propeller governor is through the propeller hub of the propeller pitch changing machine, adjusts the speed of the propeller or engine by increasing or decreasing the propeller gap.
A. 确保电门在所有面板中设为正确的状态。
B. 确保每个面板中电门指示灯的处于关掉状态。
C. 确保每个面板中的电门设置为关闭状态。
A. The layout does not rely on devices that require power such as computers.
B. The format should not rely on devices such as a power computer.
C. The forms should be independent from any equipment, computers are suitable.
A. Solenoid valves shall be shown with a notation. The notation indicates the spring is loaded by the valve to the open or closed position.
B. Solenoid valves shall be shown with a symbol. The valve indicates whether the valve is spring-loaded to the open or closed position.
C. Solenoid valves shall be shown with a mark. The mark indicates whether the valve is spring-loaded to the open or closed position.
A. The Boeing 747 symbolizes the beginning of a new ear in air transport.
B. The Boeing 747 is the first type of airplane in air transport.
C. Modern air transport started from the Boeing 747.
