第25题:[单选题] A fairly accurate estimation of a ship's position can be calculated by a technique known as ______. A.Dead reckoning B.Pilotage C.Great circle sailing D.Geographic navigation 参考答案:A 【参考译文】通过一种被称为航迹推算的技术可以非常精确地估计船位。 【解 析】fairly accurate相当精确的 estimation估计 calculate计算