I'm __________ tired, because I have __________ homework.[ ]

A. too much, too many

B. much too, too much

C. much too, too many

D. too many, too much

下列疾病中，骨髓检查不出现巨幼红细胞增多的是（）

A.巨幼红细胞贫血

B.骨髓增生异常综合征

C.红白血病

D.难治性贫血

E.再生障碍性贫血