患者因急性前间壁心肌梗死并发室性心动过速抢救,为终止发作,药物治疗应首选静注( )
A.利多卡因
B.普罗帕酮
C.苯妥英钠
D.胺碘酮
E.维拉帕米
参考答案:A
He _______ be a history teacher.
A.used to
B.be used to
C.use to be
D.be use to