铁粒幼细胞性贫血与缺铁性贫血鉴别主要选择下列哪项检测
A.红细胞内游离原卟琳测定
B.MCV.MCH. MCHC
C.骨髓铁染色
D.血清铁饱和度
E.血清总铁结合力
参考答案:C
项区的皮神经来自()。
A.枕大神经
B.颈神经前支
C.颈神经后支
D.锁骨下神经
E.颈横神经
In order to evaluate the effect that the computer has ____ people's life, they have handed out
questionnaires to more than one thousand young citizens, all of_____ picked out at random. [ ]
A. on; whom
B. for; them
C. in; whom
D. on; them