About the left coronary artery, which of the following descriptions are correct?
A.It arises from the posterior aortic sinus. B.It emerges between the root of the pulmonary trunk and the left auricle. C.Its main branches are anterior and poterior interventricular branches. D.Th eanterior interventricular branch is accompanied by the great cardiac vein. E.The left coronary artery distributes to the anterior two thirds of the interventricular septum.正确答案BDE