A、 Before install the software,the plane has to be on the ground and the engines shut down.
B、 The airplane must be on the ground with the engines off before you can install software.
C、 The aircraft should be on the ground and engines power off before you upload the software.
答案：B
A、 Before install the software,the plane has to be on the ground and the engines shut down.
B、 The airplane must be on the ground with the engines off before you can install software.
C、 The aircraft should be on the ground and engines power off before you upload the software.
答案：B
A. This format may be used in integraor in part.
B. This format may be used in its entirety or in part.
C. This format may be used in its tacticallity or in part.
A. 燃烧室指发动机内燃油和空气混合并燃烧的部分。
B. 发动机混合室把燃油空气混合后点燃。
C. 发动机的做工段把燃油和空气混合并燃烧。
A. 风扇降低气流速度。
B. 风扇使气流加速。
C. 风扇增加气流压力。
A. 按图 3 所示方法拧紧螺栓。
B. 按图 3 所示顺序安装螺栓。
C. 按图 3 所示顺序拧紧螺栓。
A. 描述飞机机体时,应描述所有的座位安排。
B. 描述飞机机体时,应描述可供选择的座位构型。
C. 描述飞机机体时,应描述座椅布局。
A. Install the cushion before you install the seat.
B. Install the seat before you install the cushion.
C. Install the seat after you install the cushion.
A. 为了简化阅读和相互援引,插图、图形和表格应尽可能以纵向排列布局呈现。
B. 为方便阅读和相互参照,如可行,插图、图形和表格应垂直排列布局。
C. 为了精简阅读和交叉索引,插图、图标和表格如可行,应纵向排列布局。
A. Adjust the tension in the wires to the correct value.
B. Adjust the tension in the cables to the correct value.
C. Adjust the torque in the cables to the correct value.
A. Check the defect before you start the procedure again.
B. Rectify the defect before you start the procedure again.
C. Define the defect before you start the procedure again.
A. 确保表面没有铁锈。
B. 确保表面没有灰尘。
C. 确保表面没有油渍。
