It's time______ breakfast.[ ]
A. to have
B. have
C. having
D. has
答案:A
发生急性前间壁心梗的最可能是哪支冠脉阻塞()
A.左冠状动脉前降支
B.左冠状动脉回旋支
C.右冠状动脉
D.左冠状动脉主干
E.右冠状动脉后降支
什么是中间业务