22. Lactose intolerance
(A) arises from inability to metabolize the disaccharide lactose
(B) depends on a deficiency of sucrose in the diet
(C) is based on the composition of lactose, consisting glucose and fructose in glycosidic linkage
(D) rises because lactose is a dimer of galactose

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統計： A(1), B(0), C(0), D(0), E(0) #2773372