正常食管内的pH值是A.2.5~4.0B.3.5~5.0C.4.5~6.0D.5.5~7.0E.6.5~8.0
正常食管内的pH值是
A.2.5~4.0
B.3.5~5.0
C.4.5~6.0
D.5.5~7.0
E.6.5~8.0
相关考题:
正常食管内的pH是()A2.5~4.0B3.5~5.0C5.5~7.0D4.5~6.0E6.5~8.0
正常食管内的pH值是
A.2.5~4.0
B.3.5~5.0
C.4.5~6.0
D.5.5~7.0
E.6.5~8.0