有助于增加气体从肺泡内排出，减少肺内残气量的是（）

A.放松练习

B.腹部加压暗示呼吸法

C.腹部沙袋加压呼吸法

D.缩唇呼吸法

E.缓慢呼吸

Why is he always forcing his daughter to practise playing the piano 3 hours a day if she is not ___ for a pianist?

A．meant

B．intended

C．trained

D．asked