2047.This material gives good protection from corrosion.

A. Operation time should be recorded if the pump is in emergency .

B. When you use the emergency pump,record the time of operation.

C. When the pump is for emergency use,record the time of usage.

A. Obey the safety precautions when you do work with high voltages.

B. When working with high resistances,you should follow the safety precautions.

C. The safety precautions are optional in an environment with high voltages.

A. The STE sentence uses approved words to give the same information clearly in a different way.

B. The STE sentences use the approved different words to vaguely show the same information.

C. STE sentences use different words in approved means to obviously express the same information.

A. Do not fuel the aircraft if the flight deck displays an engine overhead warning.

B. Do not refuel the aircraft if an engine overheat warning is displayed on the flight deck.

C. Do not replenish the aircraft if the flight deck displays an engine overheat warning.

A. 设备清单上的项目可以按项目编号进行识别,并按逻辑分组,使用诸如“螺旋桨和螺旋桨附件”,“发动机和发动机附件”,“起落架”,“电气设备”,“内部设备”,“自动驾驶”等标题。

B. 设备清单上的项目可以通过序列号表示,并进行逻辑排列,使用的标题可以是“螺旋桨和螺旋桨附件”,“发动机和发动机附件”,“起落架”,“电气设备”,“外部设备”,“自动驾驶”等。

C. 设备清单上的项目可以通过使用诸如“螺旋桨和螺旋桨附件”,“发动机和发动机附件”, “起落架”,“电气设备”,“外部设备”,“自动驾驶”等标题来进行序列编号标识以及逻辑分组。

D. B.设备清单上的项目可以通过序列号表示,并进行逻辑排列,使用的标题可以是“螺旋桨和螺旋桨附件”,“发动机和发动机附件”,“起落架”,“电气设备”,“外部设备”,“自动驾驶”等。

E. C.设备清单上的项目可以通过使用诸如“螺旋桨和螺旋桨附件”,“发动机和发动机附件”, “起落架”,“电气设备”,“外部设备”,“自动驾驶”等标题来进行序列编号标识以及逻辑分组。

A. 在你升起平台之前,确保它是安全

B. 在你登上平台之前,确保它是安全

C. 在你举起装备之前,确保它是安全

A. Those units and components are responsible for storing and delivering fuel to the turbines system,including engine-driven fuel pumps,fuel tanks (airbags),valves,booster pumps,etc.and provide components for dumping fuel overboard.

B. Those units and components are used to store and deliver fuel to the engine,including engine- driven fuel pumps,integral tanks (bladder),valves,boost pumps,etc.,and those components which furnish a means of in-flight fuel dumping .

C. Those units and components are designed to store and deliver fuel to the gas engine system,including engine-driven fuel pumps,fuel tanks (airbags),valves,booster pumps,etc.and units to pour fuel to the air.

A. Use a fan to suck the gases.

B. Use a turbine fan to remove the gases.

C. Use a fan to remove the gases.

A. The function of the rules in this specification is to direct the revising of all materials that are contained in Maintenance Manuals prepared by manufacturers.

B. With respect to format,style and method of presenting for all materials which are contained in Maintenance Manuals prepared by manufacturers,you can refer to the rules that are included in this specification.

C. When presenting format,style and method for rules of this specification,all materials of Maintenance Manuals prepared by manufacturers shall be accorded with.

A. 将要测试的这个系统在上个航段运转不正常。

B. 该系统要测试上一航段的不正常运行。

C. 在上一航段里该系统被测试为运行不正常。