Which of the following is wrong about the gastrointestinal hormones?
选项:
A:they are secreted by the endocrine cells in the mucosa layer of GI tract ;
B:exist only in the GI tract;
C:regulate both the motility and serection of the GI tract ;
D:All the gastrointestinal hormones are peptides.
发布时间:2024-06-24 10:49:33