申論 1下圖是典型民航機的酬載（Payload）與航程（Range）關係圖（Payload-Range Diagram）：㈠若該機之Max Take-Off Weight = MTOW,Max Landing Weight = MLW,Max Zero-Fuel Weight = MZFW,Operational Empty Weight = OEW,Basic (Manufacturer) Empty Weight = BEW,Fuel Tank Capacity (excluding taxi fuel) (Weight) = FW,則A點和C點的Payload值各是多少？（10分）㈡請說明A B階段、B C階段及C D階段，在飛機裝載的操作上，分別代表什麼意義？（15分）Payload-Range diagram of a typical aircraft