31. The Hell-Volhard-Zelinsky reaction involves:
(A) α-Bromination of carboxylic acids
(B) α-Bromination of ketones
(C) Formation of α, β -unsaturated carboxylic acids
(D) Formation of β-ketoesters
(E) Formation of amines

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統計： A(2), B(2), C(1), D(1), E(0) #1074577