蛋白Z和蛋白Z依赖的蛋白酶抑制物缺陷可导致（）
A.血友病
B.vWD
C.血栓形成
D.原发性纤溶亢进
E.DIC
参考答案：C
A: I have a problem. I don’t know what to do .
B: Let’s ask Dick for help .He can ______ a good idea to solve your problem .
A． think up
B． give up
C． hang out
D． laugh at
He managed to reach the summit of his career, but it was at the _________ of his health.
A．consumption
B．credit
C．exhaustion
D．expense
