单项选择题患儿，13月，因“面色苍白1月半”收住入院。体检时心尖区闻及III 6级收缩期杂音。血常规：Hb 50g L，RBC 2.5×1012 L。该患儿的贫血程度属A.正常血象B.轻度贫血C.中度贫血D.重度贫血
单项选择题Which of the following is the earliest extant monographs of pharmacology?A.Ben Cao Gang MuB.Huang Di Nei JingC.Shen Nong Ben Cao JingD.Xin Xiu Ben Cao
