nice glasses! Where did you buy them? [ ]
A. How
B. What a
C. What
D. How a
答案:C
常压侧线产品闪点的调节手段?
出血时间测定延长可见于( )
A.Ⅷ,Ⅸ,Ⅺ因子缺乏
B.凝血酶原、纤维蛋白原减少
C.止血初期缺陷
D.Ⅶ因子活化
E.毛细血管脆性增加