心肌梗死后的室性心律失常可引起猝死，首选控制室性心律失常的药物是（）
A.利多卡因
B.维拉帕米
C.心律平
D.胺碘酮
E.阿托品
参考答案：A
—Could you tell me what time the train leaves Hefei for Beijing —I'm afraid you need to ______ on the internet.
A. look for it B. look at it C. look it over D. look it up
了解饮用水和水源水的水质标准？
