A:速度为零,加速度也为零
B:速度为零,加速度不为零
C:加速度为零,有向下的速度
D:有向下的速度和加速度
游泳池内水深2m,池底受到水的压强是 ____Pa.(g取10N/kg)
She had to sell the house even though it was _______ her own wishes.