A汽车以10m/s速度匀速前进,B汽车同时同地同向做匀加速直线运动,一开始由于A的速度比B大,所以A超过B,经过10s钟B追上A,又经过10s钟B汽车超过A汽车100m,则( )
I haven't seen _______ this since I began to collect stamps.