【单选题】下列哪一个人不属于百家争鸣中儒家的代表人物:()
【单选题】要在AutoCAD中使用单行文字表达 “25±1°”,则应输入()。
【判断题】最终理想解IFR又被称为“创新的导航仪”。()
【单选题】要在AutoCAD中使用单行文字表达 “45°”,则应输入()。
【单选题】同时有按IFR和VFR飞行的飞机时,它们之间的间隔应按()执行。
【单选题】While on an IFR flight, a pilot emerges from a cloud to find himself within 300 feet of a helicopter. Which of the following alternatives best illustrates the "MACHO" reaction?
A.
He flies a little closer, just to show him.
B.
He quickly turns away and dives, to avoid collision.
C.
He is not too concerned; everything will be all right.