As the busiest woman in the village, she made _____ her duty to look after all the other people’s affairs in that village.

A．this

B．that

C．one

D．it

可进行骨髓移植的治疗的贫血是（）

A.巨幼细胞性贫血

B.再生障碍性贫血

C.自身免疫性溶血性贫血

D.慢性病贫血

E.缺铁性贫血