心电图上U波明显增高提示的是（）。
A.高血钾
B.低血钾
C.高血钙
D.低血钙
E.低血镁
参考答案：B
The workers in Australian Air Line had been on strike for two weeks. At last they had their pay _______.
A．raised
B．raising
C．risen
D．rising
属于钙通道阻滞剂的是（）
A.普鲁卡因胺
B.苯妥英钠
C.普萘洛尔
D.维拉帕米
E.胺碘酮
