简述凝血酶在血栓与止血中的作用。
参考答案:
①水解Fg;②激活因子Ⅷ、Ⅴ、Ⅶ、ⅩⅢ称为凝血酶的自身催化作用;③激活血小板;④激活抗凝系统的蛋白C;⑤抑制纤维活性。
To the joy of everyone here, the famous movie star was _____ mayor of the city.
A.adopted
B.appointed
C.named after
D.in the name of
举高消防车全方位作业时每个支腿的受力必须()
A.大于零
B.等于零
C.小于零
D.整车重量一半