51 下列何者是造成蜘蛛膜下腔出血(Subarachnoid hemorrhage)最常見的原因?
(A)頭部外傷(head trauma)
(B)顱內動脈瘤(intracranial aneurysm)
(C)顱內動脈剝離(intracranial artery dissection)
(D)動靜脈畸型(arteriovenous malformation)

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統計: A(0), B(4), C(0), D(0), E(0) #2417776