有机磷化合物是一种
参考答案:B
— Can I look at the menu for a few more minutes before I decide?
— Of course. ____, sir.
A.Enjoy yourself
B.Make yourself at home
C.Take your time
D.It doesn’t matter
男,36岁。间断性上腹部疼痛6个月,伴头晕、乏力、面色苍白1个月。化验血常规:红细胞3.2×10/L,血红蛋白70g/L,白细胞5.4×1012/L,血小板335×109/L;粪便隐血(+),胃镜检查为溃疡病。下列检查对贫血类型诊断最有意义的是()
A.血清铁
B.血清铁蛋白
C.血清总铁结合力
D.MCV、MCH
E.网织红细胞