治疗快速心房颤动,使心率减慢应首选:()
A.利多卡因
B.洋地黄
C.苯妥英钠
D.普罗帕酮
参考答案:B
The chairman told the speaker that she _____ to speak a little louder so as to make herself _____.
A.was expected; heard
B.had expected; hear
C.had hoped; hear
D.was hoped; heard
公债的发行价格不包括()
A、议价发行
B、平价发行
C、折价发行
D、溢价发行