Littre疝()
A.疝内容物为大网膜
B.疝内容物为小肠憩室
C.疝内容物为单个小肠肠襻
D.疝内容物为部分小肠肠壁
E.疝内容物为多个小肠肠襻
参考答案:B
When the fire________,the people in the building lost their head and ran in all directions.
A.broke in
B.broke away
C.broke out
D.broke down
石菖蒲的功效是()
A.活血通经
B.清热止痛
C.清心化痰
D.化湿和胃
E.辟秽止痛