9. Which of the following descriptions regarding disaccharide is incorrect?
(A) Sucrose is α-D-glucopyranosyl (1-2) B-D-fructofuranoside
(B) Sucrose is a reducing sugar
(C) Maltose has an α(1→4) linkage
(D) Cellobiose is β-D-glucopyranosyl (1-4) β-D-glucopyranose
(E) Lactose is a reducing sugar.
答案：B
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中