问题
单项选择题
正常成人食管下口(即贲门)与气管最下约距多少个胸椎距离?()
A.9
B.8
C.6
D.4
E.2
答案
参考答案:C
正常成人食管下口(即贲门)与气管最下约距多少个胸椎距离?()
A.9
B.8
C.6
D.4
E.2
参考答案:C
阅读理解。 | |
father is an engineer (工程师) and my mother is a teacher. __2__ My sister and I are students of a middle school in Beijing. We love China. __3__We have a TV and a computer. My room is big. __4__ My books are on the bookcase. I have a phone on my desk. __5__ I like my room and I like these pictures very much, too. |