1.下列几种情景,请根据所学知识,选择对情景的分析和判断的正确说法()①点火后即将升空的火箭②空间站在绕地球做匀速圆周运动③磁悬浮列车在轨道上高速行驶④高速公路上沿直线高速行驶的轿车为避免事故紧急刹车 1.The following scenarios, please choose the correct statement of the scenario analysis and judgment based on what you have learned () 1 Rocket 2 space station to be lifted after ignition to make a uniform circular motion around the earth 3 Maglev train running at high speed on the track 4 Cars traveling along a straight line at a high speed on the highway to avoid sudden accidents