风湿性心脏病二尖瓣狭窄，右心衰竭，房颤，用洋地黄及利尿后心率由140次/分减到110次/分，水肿减轻，每日尿量800ml，血钾4.15mmol/L，下一步应 ()
A. 停用洋地黄及利尿剂
B. 加用苯妥英钠
C. 加用氯化钾
D. 继续使用洋地黄维持量
E. 加用速尿
查看答案
下列选项中，不能提示肾后性急性肾衰竭的可能的是()
A. 突然无尿、腰痛、血尿
B. 无尿与多尿交替出现
C. 影像学检查未发现尿路梗阻
D. 有前列腺肥大
E. 有盆腔肿瘤
关于主动脉瓣关闭不全的病因哪项不正确 ()
A. 约2/3的主动脉瓣关闭不全为风湿热所致
B. 感染性心内膜炎是急性主动脉瓣关闭不全的少见病因
C. Marfan综合征可引起急性主动脉瓣关闭不全
D. 二叶主动脉瓣占单纯主动脉瓣关闭不全的1/4
E. 强直性脊椎炎可致主动脉瓣关闭不全
Autism and mental retardation should be treated with __________.
A. different techniques
B. social relationships and communication
C. language and information
D. several causes working together
E. a degree of repetition
F. skill development
It is possible that autism happens as a result of __________.
A. different techniques
B. social relationships and communication
C. language and information
D. several causes working together
E. a degree of repetition
F. skill development
微信支付 
支付宝支付