— If my sister goes to watch the singing competition named “I am a singer” next time, _______. The competition is well organized.

— _______.

A．so do I; So is it

B．so do I; So it is

C．so will I; So is it

D．so will I; So it is

导致肺动脉高压最重要的诱因是

A.缺氧

B.高碳酸血症

C.电解质紊乱

D.肺毛细血管痉挛、狭窄、闭塞

E.肺泡弹性减弱