2. 下列血管何者非由主動脈弓(aortic arch)直接分出?
(A)左總頸動脈(left common carotid artery)
(B)左鎖骨下動脈(left subclavian artery)
(C)左椎動脈(left vertebral artery)
(D)無名動脈(innominate artery)

1. 題目解析這道題目要求我們找出哪...