洋地黄中毒所致室性心动过速首选（）
A.利多卡因
B.苯妥英钠
C.异博定
D.胺碘酮
E.溴苄胺
参考答案：B
—Why are so many northern Chinese visiting Southeast Asia countries recently ?
—They are trying to get a ___shelter from the cold weather in winter.
A．magic
B．reliable
C．permanent
D．Temporary
先天性髋脱位正确的说法应该是
A．男多于女
B．右侧多见
C．北方少于南方
D．双侧多见
E．臀位产发病率高
