题目

— How did your interview with the manager go? —He seemed interested in my experience, but he didn't ask for references. A . Perfect! B . I'm not sure. C . That's right. D . Couldn't be better. 答案：B如图所示的各种现象中，物体运动状态没有改变的是（ ）A．运动员把飞来的足球踢出去B．小孩匀速从滑梯滑下C．核外电子绕原子核匀速运转D．刚刚起飞的火箭