My father             smoke heavily, but now he doesn't smoke any more. [ ]

A. use to

B. was used to

C. used to

D. was used

肝功能衰竭伴有出血倾向者，最适宜输注的是（）

A.全血

B.普通冷冻血浆

C.新鲜冷冻血浆

D.冷沉淀

E.浓缩血小板