________, as long as I’m with nature, I don’t care.

A．However tough the voyage is

B．Whatever tough the journey is

C．However the voyage is tough

D．Whatever the journey is tough

需行气管插管和胸腔闭式引流术的是（）

A.单纯性肋骨骨折

B.多发性肋骨骨折

C.多发性肋骨骨折伴血气胸

D.开放性肋骨骨折

E.自发性气胸