A、 The turbine rotates by a reduction gear,gives tolerance to the HP shaft,so it can drive the engine and the aircraft accessories.
B、 The turbine turning through a reduction gear, applies a torque to the HP shaft, thus driving the engine and the aircraft components.
C、 The turbine turning through a reduction gear, applies a torque to the HP shaft, thus driving the engine and the aircraft accessories.
答案：C
A、 The turbine rotates by a reduction gear,gives tolerance to the HP shaft,so it can drive the engine and the aircraft accessories.
B、 The turbine turning through a reduction gear, applies a torque to the HP shaft, thus driving the engine and the aircraft components.
C、 The turbine turning through a reduction gear, applies a torque to the HP shaft, thus driving the engine and the aircraft accessories.
答案：C
A. When it is unlikely that the temperature decreases to -20 ℃, remove the batteries.
B. If it is possible that the temperature will decrease to -20 ℃, remove the batteries.
C. If it is possible that the temperature will decrease to -20 ℃, cut the cells.
A. Ensure the oxygen tubes are completely clear. If oxygen is mixed with oil or compound together, it will form an explosives. Explosion can cause damage to equipment or injury to personnel.
B. Make sure that the oxygen tubes are fully clean. Oxygen and oil or grease make an explosive mixture. An explosion can cause injury or death to personnel.
C. Guarantee the oxygen tubes are completely free of dirts. Oxygen, oil and grease can combine to form an explosive oxides. Explosions can cause casualties.
A. Before you use dangerous materials, obey these precautions:
B. Before you use dangerous materials, omit these precautions:
C. Before you use dangerous materials, disobey these precautions:
A. 查找损伤。
B. 看一下损伤。
C. 检查损伤。
A. Turn the adjuster clockwise to increase 60 Deg.
B. Turn the adjuster counterclockwise in increments of 60 Deg.
C. Decrease 60 Deg. to turn the adjuster counterclockwise.
A. 每条指令用一句话写出，除非有两个或更多的动作。
B. 每句话仅写一条指令，除非有两个或更多的动作同时发生。
C. 每条指令除非有两个或更多的动作同时发生，否则仅用一句话写出。
A. 如果可行的话，手册中出现的计量单位应该保持一致。
B. 实际上，手册中出现的测量值必须保持一致。
C. 手册使用的计量单位必须与实际情况保持一致。
A. 示例应阐述最常见的情况，避免涉及标准温度、基准重量、零风速、精确参数值或其他非典型的实际情况。
B. 说明最普遍使用的情况，避免涉及标准温度、参考重量、零风速、表格精确值或其他非典型实际情况的特殊情况。
C. 说明演示的最一般用途，避免出现涉及标准温度、参考重量、零风速、表格精确条目或其他非典型实际情况的特殊情况。
A. A separate document should be prepared for FAA approved airworthiness limitations which are excluded in the primary maintenance manual.
B. FAA approved airworthiness limitations shall be prepared as a separate document for inclusion in the principal maintenance manual.
C. FAA approved airworthiness limitations must be contained as an integrated documentation for inclusion in the main maintenance manual.
A. 描述飞机发动机时，应简要描述以下附件的相关信息： 1.滑油泵 2.燃油泵 3.液压泵 4.气源泵 5.转速表 6.扭矩计 7.电源 8.螺旋桨同步器 9.排气温度探头
B. 描述飞机发动机时，应简要描述以下附件的相关信息： 1.燃油泵 2.煤油泵 3.液压泵 4.气泵 5.转速表 6.扭力计 7.电源 8.螺旋桨同步器 9.排气温度探头
C. 描述飞机发动机时，应简要描述以下附件的相关信息： 1.滑油泵 2.燃油泵 3.液压泵 4.气泵 5.速度表 6.扭力计 7.电源 8.螺旋桨同步器 9.排气温度探头
