“The Bailu Plain” directed by Wang Quanan is ______ most moving film and I really want to see it for ______ second time.

A．a; a

B．the; a

C．the; the

D．the; a

当活塞面积一定时，活塞运动速度与进入油缸中油的（）有关，活塞推力大小与油的（）有关。