胸痛、呼吸困难，面色苍白，伤侧胸部逐渐饱满，气管渐向健侧移位，叩呈浊音，查血细胞比容逐渐下降（）。

A.张力性气胸

B.进行性血胸

C.开放性气胸

D.多根多处肋骨骨折

E.中量血胸

-- Why do you suggest we buy a new machine?

--- Because the old one has been damaged ___________.

A．beyond reach

B．beyond repair

C．beyond control

D．beyond description