当人受轻伤流血时,能自动止血,其凝血作用的是[ ]
A.白细胞
B.血红蛋白
C.血小板
D.浓缩的血浆
答案:C
Which of the following uncovered position is most likely to have a graph that looks like the graph for a: Protective put Covered call()
A. Long call Long put
B. Short call Long put
C. Long call Short put
在颗粒凝集法中要稀释血清标本,原因是:()
A.防止假阳性
B.防止假阴性
C.节省标本
D.节约试剂