16. 下列何種分子會抑制胃酸分泌?(1) gastrin(2) prostaglandin E1(3) histamine(4) acetylcholine(5) somatostatin(A) (1)+(3)+(4)(B) (1)+(3)+(5)(C) (3)+(4)+(5)(D) (2)+(5)(E) (2)+(3)+(5)