凝血因子
参考答案：
血浆与组织中直接参与凝血的物质。
The boy ______healthy ________he cloesn’t like to exercise. [ ]
A. doesn't ; so
B. isn't ; so
C. doesn't ; because
D. isn't ; because
葶苈子炒黄可（）
A.缓和药性
B.降低毒性
C.消除副作用
D.矫臭矫味
E.增强疗效
