抗凝作用慢而持久的药物是()
A. 肝素
B. 双香豆素
C. 华法林
D. 新抗凝
E. 前列环素
There are good reasons for Windows XP users to _______.?xml:namespace>
A.upgraded?xml:namespace>
B.upgrade?xml:namespace>
C. be upgrading
Ithinkitistimeyouwokeupand_________yourthoughtsonmoreworldlymatters.
A. focus
B. focused
C. focuses
Herhusbandhadtodeliverthebabyhimself.
A. 接生
B. 递送
C. 发表演讲