首选治疗为
A．铁剂
B．肾上腺皮质激素
C．雄激素
D．维生素C
E．安络血
参考答案：C
Many students didn't realize the importance of study _______ they left school. [ ]
A. when
B. until
C. after
D. unless
不符合营养性巨幼红细胞性贫血临床表现的是
A．毛发稀疏、发黄B．肝、脾肿大C．舌炎D．头围增大E．震颤
