为小儿进行大量不保留灌肠时,肛管应插入肛门长度为()
A.3~5cm
B.4~7cm
C.5~8cm
D.6~9cm
E.7~10cm
参考答案:B
What are the main trends of applied linguistic research in the present period
胸骨左缘第2肋间闻及粗糙的连续性机器样杂音,并向颈、背部传导()
A.动脉导管未闭
B.室间隔缺损
C.房间隔缺损
D.主动脉瓣狭窄
E.二尖瓣狭窄