题目

一货轮航行到处，测得灯塔在货轮的北偏东，与灯塔相距海里，随后货轮按北偏西的方向航行分钟后，又得灯塔在货轮的东北方向，则货轮的速度为（   ）海里/小时 A． B．     C．D． 答案：BWhile I_________that he is an excellent leader,I don’t think he can do a good job in this company because he is too careless. A. reflect     B. recommend        C. acknowledge       D. urge