A、 The rudder is a replaceable airfoil which is mounted to the vertical fin and is used for yaw control.
B、 The rudder is a removable wing which is fixed to the vertical stabilizer and is used for pitch control.
C、 The rudder is a removable airfoil which is attached to the vertical stabilizer and is used for yaw control.
答案：C
A、 The rudder is a replaceable airfoil which is mounted to the vertical fin and is used for yaw control.
B、 The rudder is a removable wing which is fixed to the vertical stabilizer and is used for pitch control.
C、 The rudder is a removable airfoil which is attached to the vertical stabilizer and is used for yaw control.
答案：C
A. 没有人允许接近飞机做功能测试。
B. 不允许任何人进入飞机做功能测试。
C. 在做功能测试期间，任何人不得接近飞机。
A. 本段描述了不同飞行阶段重量和力矩的计算程序，以及确保重心处于经批准范围内的程序。
B. 本段描述了为计划飞行的各个阶段计算重量和力矩的程序，以此确保重心处于经批准的范围内。
C. 本段描述了为计划飞行的各个阶段计算重量和配平的程序以及确保重力的中心点在批准范围内的程序。
A. 注意，如果没有正确执行以下步骤，会导致人员伤亡。
B. 警告，如果你不正确听从指挥，则会导致人员伤亡。
C. 如果没有正确遵循警告里的要求，将会导致人员伤亡。
A. 描述飞机发动机时，应描述有关发动机仪表的以下信息： 1.仪表操作方法 2.读数极限值和典型正常值（如适用）。
B. 描述飞机发动机时，应描述发动机仪表有关： 1.操作方法 2.读数限制和典型值（如适用）。
C. 描述飞机发动机时，应描述一下发动机仪表： 1.操作方法 2.限制读数以及典型值（如适用）。
A. The fire-proof materials and seals are mounted on or about the power unit.
B. The fire-resistant partitions and seals are mounted on the power unit.
C. The fire-resistant partitions and seals are mounted on or about the power package.
A. Make the panel display a warning notice in order to reveal the operation of the controls.
B. Tag a warning notice on the panel to remind the operation of the controls.
C. Put a warning notice on the panel to prevent operation of the control.
A. 在《线路图手册》中，引言部分应包括每个主题下的字母索引，以帮助查找所需电路。该索引应显示系统电路所在的章节和子章节。
B. 在《线路图手册》中，引言部分应包括以主题的首字母顺序编写的索引，以帮助查找所需电路。该索引应显示系统电路所在的章节和子章节。
C. 在《线路图手册》中，引言部分应包括每个主题下的字母索引，以帮助查找所需电路。该索引应显示章节和子章节中的系统。
A. Instead of starting each program at the top of a new page, procedures should be prepared in chapter numbering sequence, with appropriate primary and secondary headings.
B. Each Chapter of the procedure shall be prepared in reference number order with appropriate, hierarchical headings. The beginning of a new section of the procedure does not need to start a new page.
C. Procedures shall be prepared in reference number sequence within each Chapter with proper major and minor subject heads, without the necessity of each procedure starting at the top of a new page.
A. Replace the No. 1 and No. 2 computers. Then do the test again.
B. Interchange the No. 1 and No. 2 computers. Then do the test again.
C. Repair the No. 1 and No. 2 computers. Then do the test again.
A. Lubricate the engine and its accessories with the same brand.
B. Lubricants for the engine and the auxiliary equipment are the same.
C. The engine and the additional devices are greased in a same manner.
