A、 仅在真正需要时才会使用被动时态。
B、 当真正需要时仅使用被动时态。
C、 当真正需要时仅使用主动时态。
答案：A
A、 仅在真正需要时才会使用被动时态。
B、 当真正需要时仅使用被动时态。
C、 当真正需要时仅使用主动时态。
答案：A
A. Record the test results.
B. Record the check results.
C. Test the result on the record.
A. Make sure that the bolts are tight.
B. Make sure that the screws are securely installed.
C. Make sure that the bolts are loose.
A. Remove the magnesium drain plug from the hydraulic reservoir.
B. Replace the magnetic drain plug of the oil tank.
C. Remove the magnetic drain plug from the oil tank.
A. It is suggested that nickel plated corrosion resistant steel or nickel plated steel fittings be used as alternatives for aluminum fittings in the high pressure and normal brake return systems between the antiskid module and parking brake module.
B. Suggest to use vanadium plated corrosion resistant steel or vanadium plated steel fittings as alternatives for aluminum fittings in the high pressure and normal brake return systems between the antiskid module and parking brake module.
C. It is recommended that cadmium plated corrosion resistant steel or cadmium plated steel fittings be used as replacements for aluminum fittings in the high pressure and normal brake return systems between the antiskid module and parking brake module.
A. Timely check the instruments for accuracy.
B. Instuments shuld be periodically checked for accuracy.
C. Timely check the instruments if it is accurate.
A. Detection system will provide information about how to detect ice.
B. Detection system is utilized to find and display ice formation.
C. The detection information of ice is from the indication system.
A. 那些组件和部件存储、调节并向旅客和机组输送氧气，包括气瓶、释压活门、关断活门、出口、调节器、面罩等。
B. 气瓶，释压活门，关断活门，出口，调节器，面罩等组件和部件储存氧气，并将调节后的氧气提供给乘客和机组。
C. 那些旅客和机组氧气系统的相关组件和部件存储、调节、输送氧气，包括气瓶、释压活门、关断活门、出口、调节器、面罩等。
A. It is forbidden to go into the engine test area with approval.
B. Entering the engine test area must not be approved.
C. Approval is a must when entering the engine test area.
A. 电线代码由电路功能代码、电线编号、电线段字母和电线尺寸组成。通常会添加后缀，表示地线（N）、相位（A、B等）或热电偶材料（铝镁合金等）。
B. 电线代码由电路功能代码、电线编号、电线段字母和电线尺寸组成。通常会添加后缀，表示接地（N）、阶段（A、B等）或热敏电门材料（铝镁合金等）。
C. 电线代码由电路功能代码、电线编号、电线段字母和电线尺寸组成。通常会添加后缀，表示地线（N）、相位（A、B等）或热敏电门材料（铝镁合金等）。
A. Ground Idle Power refers to the power required to run an engine on the ground, as slowly as possible, yet sufficient to ensure satisfactory engine, engine accessory, and airplane operation with a minimum of thrust.
B. Ground Idle Power refers to the power required to run an engine as slowly as appropriate on the ground while still ensuring satisfactory airplane operation with a maximum of thrust of engine and engine accessory.
C. For Ground Idle Power, it determines the minimum power necessary to initiate and maintain safe airplane operation, engine accessory function, and satisfactory engine performance while limiting the degree of thrust utilized.
