Lily regretted ______ to Mary’s birthday party last Sunday.

A．not to go

B．not having been going

C．not going

D．not to be going

可引起Ⅰ型呼吸衰竭的是（）

A.急性间质性肺炎

B.结节病Ⅰ期

C.原发综合征

D.重症肌无力

E.纵隔淋巴瘤