—How do you find your boy-friend?

—         .  

A．I can’t find him anywhere

B．By searching the whole building

C．He’s all right, as long as you do what he says

D．I haven’t seen him for long, he is very busy these days

血友病排除试验显示，BT和vWF: Ag正常，可以排除

A．因子抑制物

B．遗传性纤维蛋白原缺陷症

C．血管性血友病

D．遗传性因子Ⅷ缺乏症

E．血小板减少性紫癜