A、 Do not increase the temperature of the component until it is the same as the air.
B、 If the component is of the same temperature as the ambient, lower its temperature.
C、 Let the temperature of the component cool to ambient.
答案：C
A、 Do not increase the temperature of the component until it is the same as the air.
B、 If the component is of the same temperature as the ambient, lower its temperature.
C、 Let the temperature of the component cool to ambient.
答案：C
A. 使用危险品时穿上防护服。
B. 使用溶剂时穿上防护服。
C. 使用易感染物品时穿上防护服。
A. 提供飞机雷达信息的组件和部作。包括VOR、皮托管、静压孔、ILS、飞行指引仪、罗盘、指示器等。
B. 提供飞机仪表信息的组件和部件。包括VOR、皮托管、静压孔、ILS、飞行指引仪、罗盘、指示器等。
C. 提供飞机导航信息的组件和部件。包括VOR、皮托管、静压孔、ILS、飞行指引仪、罗盘、指示器等。
A. Do not replace the self-locking nuts with plain nuts.
B. Do not use a general fastener instead of a self-locking one.
C. The general purpose nut is interchangeable with the self-locking nut.
A. 需要时使用示意图来表明“流程” ,以尽可能简短的方式说明空气控制、电气、流体动力、燃油和涡轮系统的操作。
B. 必须使用示意图来来表明“流程”,以尽可能简洁的方式说明空气控制、电气、流体动力、燃油和涡轮系统的操作。
C. 必要时使用示意图来表明“流程”,以尽可能直接的方式说明空气控制、电气、流体动力、燃油和涡轮系统的操作。
A. That portion of the system that automatically maintains a safty flight altitude by correcting for effects of speed, such as mach trim and speed balance. This includes sensing, computing, actuating, indicating, and warning devices such as computers, servos, actuators, warning lights, etc.
B. That portion of the system that automatically maintains a safe flight attitude by correcting for effects of speed, such as mach trim and speed stability. This includes sensing, computing, actuating, indicating, and warning devices such as computers, servos, actuators, warning lights, etc.
C. That portion of the system that automatically maintains a safe flight attitude by correcting for effects of airspeed, such as mach trim and speed stability. This includes sensor, computer, actuator, indicate, and caution devices such as computers, servos, actuators, warning lights, etc.
A. Catalyst remains unchanged during the processing of chemical action.
B. Catalyst is substance used to change the speed or rate of a chemical action with its molecular structure being changed.
C. Catalyst is substance used to change the speed or rate of a chemical action without being physically changed itself.
A. Any bays have no doors.
B. Some of the bays do not have an access door.
C. Some decks do not have a door.
A. 确保装置运转良好。
B. 确保装置满足要求。
C. 确保组件是令人满意的。
A. Make sure that the position of the wing flaps is symmetrical.
B. Make sure that the wing flaps must move symmetrically at all time.
C. The wing flaps are moved to the symmetrical position.
A. After you put out the fire, close the valve on the fire extinguisher.
B. After you extinguish the fire, close the valve on the fire extinguisher.
C. After the fire is out, close the valve on the fire extinguisher.
