A、 重心是飞机悬浮时保持平衡的点。它与参考基准的距离是通过总力矩除以飞机的总重量得出的。
B、 飞机的重心是使飞机保持平衡的点。它与参考基准的距离可以通过总弯矩除以飞机总重量找到。
C、 重心是如果飞机悬着使飞机保持平衡的点。它到参照基准的距离可以通过总长度除以总重量找到。
答案：A
A、 重心是飞机悬浮时保持平衡的点。它与参考基准的距离是通过总力矩除以飞机的总重量得出的。
B、 飞机的重心是使飞机保持平衡的点。它与参考基准的距离可以通过总弯矩除以飞机总重量找到。
C、 重心是如果飞机悬着使飞机保持平衡的点。它到参照基准的距离可以通过总长度除以总重量找到。
答案：A
A. 制定本规范的目的是为了降低成本。
B. 本规范是为减少失误而制定的。
C. 规范的制定是为了发展航空安全。
A. The Boeing-777 airplanes are different from the previous Boeing series ones mainly in that they are flown by wires.
B. The difference between the Boeing-777 airplanes and the subsequent Boeing series is that they are operated by wires.
C. Fly-by-wire is the main difference between Boeing-777 airplanes and the subsequent Boeing series.
A. The equipment refrigeration system exchanges the key equipment cabinets and the equipment in the compartment.
B. The equipment cooling system removes heat from the equipment in the main equipment center and the flight compartment.
C. The equipment exchange system removes heat from the lower equipment center and the aft cargo compartment.
A. Pavement requirements for the exactly aircraft are derived from the static analysis of loads imposed on the main landing gear struts.
B. Pavement requirements for the one aircraft are derived from the static analysis of loads imposed on the main landing gear struts.
C. Pavement requirements for the particular aircraft are derived from the static analysis of loads imposed on the main landing gear struts.
A. 该控制组件安装在机身尾部。
B. 该控制组件安装在驾驶舱后部。
C. 该控制组件位置在驾驶舱底部。
A. The damper prevents sudden movement of the control.
B. The damper prevents sudden movement in case of the control.
C. The damper prevents until the control moves suddenly.
A. Refer to the general information in addition to engine operation limits, guidelines and special procedures.
B. For general information, refer to engine operation limits, guidelines and special procedures.
C. Refer to engine operation limits, guidelines and special procedures besides general information.
A. Place chocks around all landing gear tires.
B. Set the wheel gears beneath all landing gear wheels.
C. Assemble blocks around all landing gears.
A. That portion of the system is used to perform the cranking portion of the starting operation.
B. That portion of the system is used to perform the igniting portion of the starting operation.
C. That portion of the system is used to perform the cranking portion of the igniting operation.
A. 如果这个部件应该纳入CAP，那么使用最终数据做出判断。
B. 公司应利用现有数据判断该部件是否与CAP相关联。
C. 已用所得数据来确定是否应将该部件纳入CAP。
