内、外源性凝血系统形成()内源性凝血途径的起动因子是()
A.因子Ⅻ
B.因子Ⅰ
C.因子Ⅹ
D.因子Ⅷ
E.因子Ⅴ
参考答案:C,A
Recently our government policymakers are very ________ about the rapidly rising food costs.[ ]
A.upset
B.confused
C.concerned
D.conscious
下列哪些是支气管哮喘的辅助检查
A.肺功能检查
B.胸部X线检查
C.过敏原测试
D.血气分析
E.外周血象检查