目前已知安全性最高的镇静催眠药物是()
A.苯二氮类(地西泮等)
B.巴比妥类(鲁米那)
C.乙醇
D.麻醉剂
E.非苯二氮类
参考答案:E
31. An e-pal, as you have known, means a friend ______ you write e-mails.
A.to which
B.for whom
C.about whom
D.to whom
左心室后负荷增加见于()
A.二尖瓣狭窄
B.肺动脉高压
C.主动脉瓣狭窄
D.主动脉瓣关闭不全
E.三尖瓣关闭不全