炎症时,渗出液的产生最主要的原因是()
A.血管内流体静压升高
B.血管内胶体渗透压降低
C.血管通透性升高
D.组织静水压升高
E.组织液的胶体渗透压升高
参考答案:C
Obama has been elected ___ first black president of the United States, and the international society expects to have ____ new USA under his leadership.
A 不填;the B a; the C. the ; a D the ; the
在下列分类单位中,共同特征最多的是( )
A.门
B.纲
C.科
D.属