—May I ask your name?
—______. [ ]
A. Yes, you does
B. Sure
C. do you
D. You are
答案:B
红细胞沉降率(女性)的参考值为
A.5~15mm/1h末
B.0~15mm/1h末
C.10~20mm/1h末
D.15~20mm/1h末
E.0~20mm/1h末
下列哪种物质缺乏容易引起胎儿神经管缺陷()
A.维生素B12
B.维生素E
C.叶酸
D.钙
E.铁