A、 The tops of the bolt heads must not be more than 5 MM above the plate.
B、 The bottoms of the bolt heads can be more than 5 MM above the plate.
C、 5 MM is permitted for the tops of the bolt heads below the plate.
答案：A
A、 The tops of the bolt heads must not be more than 5 MM above the plate.
B、 The bottoms of the bolt heads can be more than 5 MM above the plate.
C、 5 MM is permitted for the tops of the bolt heads below the plate.
答案：A
A. Use the correct tools to open the containers for these materials.If you do not follow these prerequisites, injury to your skin and lungs can occur.
B. Get the corrective tools to open the containers for these materials.If you do not obey these precautions, injury to your skin and lungs can occur.
C. Get the proper tools to open the containers for these materials.If you do not observe these precautions, injury to your skin and lungs can occur.
A. Navigation and full/static pressure systems refer to those units and components that provide aircraft navigation information, covering OOMB, pitot, static, ILS, flight guides, binnacles, indicators, etc.
B. Navigation and pitot/static systems refer to those units and components which provide aircraft navigational information, including VOR, pitot, static, ILS, flight director, compasses, indicators, etc.
C. Navigation and pitot/static systems refer to those units and components that provide aircraft navigation information, including VOR, pitot, still tubes, instrumental system, flight manual, compasses, indicator, etc.
A. 依次执行以下工作以安全打开相应发动机上的左右侧反推。
B. 安全打开相应发动机上的左右侧反推来依次执行以下工作。
C. 依次执行以下工作以安全打开相应发动机上的左右侧推力杆。
A. Handbooks shall be ready to revise in accordance with the specification.
B. In accordance with the specification, manuals should be easy to revise.
C. Handbooks have been already revised, according to the specification.
A. 滤油器内如有金属颗粒，应检查滤芯是否有磨损。
B. 滤油器内如有金属残留物，立即检查滤芯是否有磨损。
C. 滤油器内如有金属颗粒，应确认滤芯的磨损情况。
A. If the values occur again, remove the unit.
B. If the symptoms occur again, remove the unit.
C. Remove the unit, until the symptoms occur again.
A. Dry all metal parts that have different metal inserts or deep blind holes in an oven at 225 to 275°F (107 to 135°C) for a minimum of one hour.
B. Put all different metal inserts or deep blind holes metal parts in an oven at 225 to 275°F (107 to 135°C) for a maximum of one hour.
C. All metal parts that have different metal inserts or deep blind holes are dry in an oven of 225 to 275°F (107 to 135°C) for a minimum of one hour.
A. 如果不做这个改装，这个装置的使用寿命可能会比平时短。
B. 如果不做这个改装，这个单元的维修寿命可能会比平时短。
C. 如果做了改装，这个装置的使用寿命会比预计的寿命长。
A. Wait for the paint to dry completely before polishing it again.
B. Do not apply the second layer of paint if the first layer has dried thoroughly.
C. Let the first layer of paint dry fully before you apply the second layer.
A. 对于增压飞机和涡轮增压或涡轮螺旋桨飞机，应规定最大高度限制
B. 增压飞机、涡轮增压飞机或涡轮螺旋桨动力飞机，对于最高飞行高度有陈述。
C. 对于涡轮增压或涡轮螺旋桨飞机，可以提供最大高度限制。
