49 結腸的生理功能何者正確?
(A) Absorbs Water, sodium chloride and bicarbonate; secretes potassium
(B) Absorbs Water, sodium and bicarbonate; secretes potassium and chloride
(C) Absorbs Water, potassium and chloride; secretes sodium and bicarbonate
(D) Absorbs Water, sodium and chloride; secretes potassium and bicarbonate
(E) Absorbs Water and sodium; secretes chloride, bicarbonate and potassium