74.下列心電圖的診斷為何？

(A)心房撲動 (atrial flutter)
(B)心室頻脈 (ventricular tachycardia)
(C)心房顫動 (atrial fibrillation)
(D)竇性心搏過速 (sinus tachycardia)

Egan's 12ed p.363 這題...