23. 家禽消化道哪個部位具分泌胃蛋白酶的功能？(A)嗉囊 (B)腺胃 (C)砂囊 (D)大腸。

29. Blood typing depends on: (A) The addition of sucrose to blood before storage: (B) The presence of a polysaccharide coating on red blood cells (C) The presence of a polysaccharide coating on white blood cells (D) The nature of the oligosaccharide portion of glycoproteins on the surface of red blood cells