冠状动脉粥样硬化,最常受累的动脉分支是
A.右冠状动脉主干B.左冠状动脉主干C.右冠状动脉回旋支D.左冠状动脉回旋支E.左冠状动脉前降支
参考答案:E
Is there anyone in your class who________ the car accident that happened in front of our school this
morning?[ ]
A. witnessed
B. observed
C. introduced
D. predicted
药品批准文号中的字母Z代表()
A.化学药品
B.中药
C.生物制品
D.进口药品分包装
E.进口药品