本段描述的程序是关于计算计划飞行的各个阶段的重量和力矩以及确保重心在批准的范围内。
A.This section provides procedures to calculate weight and moments for different phases of a scheduled flight and to make sure that the center of thrust is beyond approved limits. B.The paragraph gives the weight and moments for calculating all kinds of phases of a planned fight and procedures for ensuring that center of gravity is within authorized limits. C.. This paragraph describes the procedures to calculate weight and moment for various phases of a planned flight and to ensure that the center of gravity is within approved limits.正确答案C
