心绞痛预后最差的冠状动脉病变是（)A.右冠状动脉B.左冠状动脉回旋支C.右冠状动脉后降支D.左冠

心绞痛预后最差的冠状动脉病变是()

A.右冠状动脉

B.左冠状动脉回旋支

C.右冠状动脉后降支

D.左冠状动脉主干

E.左冠状动脉前降支

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