A.1575ml B.1800ml C.1500ml D.2000ml E.1975ml
A.食管癌 B.賁門失弛緩癥 C.食管化學(xué)燒傷 D.食管炎 E.先天性巨食管
A.食管拉網(wǎng)脫落細(xì)胞學(xué) B.大便隱血 C.MRI D.CT E.食管鏡