血清铁减低、总铁结合力增高及转运铁蛋白饱和度减低见于()
A.感染性贫血
B.海洋性贫血
C.缺铁性贫血
D.再生障碍性贫血
E.铁粒幼细胞性贫血
参考答案:C
一对夫妇生第一胎是男孩,这对夫妇打算生第二胎,第二胎是男孩的比率是:
A.0
B.100%
C.50%
D.75%
In order to register, people had to understand the Constitution of the United States.
A.True
B.False