It is most________that the environmentalists will come to the area to investigate the possible damage

caused by the serious pollution.[ ]

A. likely  

B. perhaps

C. possibly  

D. probably

急性前间壁心肌梗死最可能是以下哪一支冠状动脉闭塞（）

A.左冠脉前降支

B.右冠脉

C.左冠脉回旋支

D.左冠脉主干

E.以上都不是