在我国,成人先天性心血管病的常见种类有()
A.室间隔缺损
B.肺动脉瓣狭窄
C.动脉导管未闭
D.主动脉夹层
E.房间隔缺损
参考答案:A, B, C, E
—Susan, what are the advantages of MP5 players?
—Mom, they are smaller and lighter ______ they can be carried very easily.
A.unless
B.if
C.until
D.so that
解除尿路梗阻的方法,下列哪项首选()
A.留置导尿
B.膀胱造口
C.肾造口或经皮肾穿刺造口
D.输尿管皮肤造口
E.查清病因,解除原发病