答案：B?
答案：B?
A. Materials used to repair layered structures must keep the rigidity, gravity, aerodynamic or electronic properties of the original assembly.
B. The materials used in the repair of laminate structures must preserve the strength, weight, aerodynamic characteristics, or electrical properties of the original assembly.
C. Materials that are used for fixing the layer structures must maintain the intensity, weight, aerodynamic or electrical properties of the original assembly.
A. Emergency Exit means the exit doors used to facilitate evacuation that are not normally used for exit.
B. Emergency Exit is usually used as exit whose function is convenient for evacuation.
C. Emergency Exit stands for the exit doors but not the exit which is used to facilitate evacuation.
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. Proper recipe shall be adopted to measure the pressure.
B. The pressure shall be estimated by using accurate equation.
C. Calculate the pressure with the applicable formula.
A. The computer consumes the energy based on these values calculations.
B. The computer calculates the energy consumption from these values.
C. The computer counts these values based on the energy costs.
A. It＇s not easy to install more than two washers for each bolt.
B. It is forbidden to install more than two washers for each bolt.
C. Installing one washer for each bolt is forbidden.
A. In the case of damage to the brackets, continue the procedure.
B. In the absence of damage to the brackets, continue the procedure.
C. In the condition of damage to the brackets, continue the procedure.
A. 该指示器显示水箱的流量。
B. 该指示器显示油箱中的液压油量。
C. 该指示器显示加入油箱的油量。
A. 描述飞机螺旋桨时，如果合适，应阐述正桨、反桨和反转。
B. 描述飞机螺旋桨时，如适用，应描述顺桨、解除顺桨和反桨相关信息。
C. 描述飞机螺旋桨时，如果合适，应讨论顺桨、不反桨和反推。
A. 确保盖板处于打开位置。
B. 使得盖板处于打开位。
C. 确保作动筒处于打开位置。
