内源性凝血系统始动反应首先是()
A.Ⅻ因子被激活
B.组织因子(Ⅲ因子)激活
C.Ⅷ因子被激活
D.Ⅹ因子被激活
E.Ⅶ因子被激活
参考答案:A
--- _________ my shoes?
--- They're under the bed.[ ]
A. Where's
B. Where're
C. What colour is