A:3.6 m=3.6×100=360 cm
B:3.6 m=3.6 m×100 cm=360 cm
C:3.6 m=3.6m×0.0001km=0.003 6 km
D:3.6 m=3.6×100 cm=360 cm
—She____(visit) her grandparents. She usually____(visit) them on Sundays. She____(visit) them again this Sunday.
从地面竖直上抛一物体A,同时在离地面某一高度处有另一物体B自由落下,两物体在空中同时到达同一高度时速率都为v,则下列说法中正确的是( )