柏油样便提示上消化道的出血量为()
A.>10ml
B.>20ml
C.>30ml
D.>40ml
E.>60ml
参考答案:E
男性,67岁,3周来晕厥发作5次,拟诊为阿斯综合征。最易发生阿斯综合征的心律失常是()
A.完全性左束支传导阻滞
B.完全性右束支传导阻滞
C.三度房室传导阻滞
D.心房颤动
E.阵发性室上性心动过速
I have ______ homework to do this weekend.
[ ]
A. too much
B. much too
C. too many
D. many too