找考题网-背景图
单项选择题

A.黏膜和黏膜下层B.黏膜和肌层C.肌层和外膜D.黏膜下层、肌层和外膜E.黏膜、黏膜下层和肌层消化管皱襞的组成……

A1型题消化管皱襞的组成成分是()

A.黏膜和黏膜下层
B.黏膜和肌层
C.肌层和外膜
D.黏膜下层、肌层和外膜
E.黏膜、黏膜下层和肌层