In the good care of the nurses,  the boy is  ___   recovering from his heart operation.   [ ]

A. quietly          

B. actually  

C. practically      

D. gradually

按贫血的形态学分类，骨髓病性贫血属下列哪项()

A．单纯小细胞性贫血

B．小细胞低色素性贫血

C．正常细胞性贫血

D．大细胞性贫血

E．珠蛋白生成障碍性贫血