治疗洋地黄中毒所致的室性心动过速，宜首选（）
A.钾盐
B.利多卡因
C.普罗帕酮
D.胺碘酮
E.普鲁卡因酰胺
参考答案：B
The settlement is home to nearly 1,000 people, many of（）left their village homes for a better life in the city.
A. whom
B. them
C. which
D. those
成本决策决策的基本程序是什么？
