急性心肌梗死引发的室性心动过速首选()。
A.奎尼丁
B.维拉帕米
C.普罗帕酮
D.利多卡因
E.地高辛
参考答案:D
I shall you my home town if you have time to come. [ ]
A. take; to
B. show; around
C. walk; through
D. drive; into
天文学内各学科怎么区分,研究的内容怎么划分,相互之间有什么关系?