96×1.25
=12×(8×1.25)
=12×1
=12
—Tell us something about Canada, OK?
—I’m sorry. _________ Jack _________ I have ever been there.
运动员在标准400m跑道的田径场上进行1500m比赛,按规定跑完1500m,运动员的位移大小是( )