短QT综合征唯一有效的治疗方法为()
A.基因治疗
B.抗心律失常药物治疗
C.导管射频消融
D.置入心脏复律除颤器
E.手术治疗
参考答案:D
Class regulations require ______ is the last to leave the classroom ______ off all the lights.
A.who; should turn
B.whomever; turn
C.whoever; turning
D.whoever; turn
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