单项选择题
A.可分贲门腺、幽门腺和胃底腺B.贲门腺分布于胃的贲门部C.幽门腺分布于胃的幽门部D.胃底腺分布于胃底部和胃窦部E.贲门腺可分泌粘液和溶菌酶
A.上皮和固有层B.黏膜层和黏膜下层C.黏膜层和肌层D.黏膜下层和肌层E.上皮和黏膜下层
A.结缔组织B.小叶间胆管C.肝固有动脉D.小叶间静脉E.小叶间动脉