【已刪除】27.下列何者不適合充當matrix-assisted laser desorption ionization（MALDI）法之介質？
(A)2,5-dihydroxy benzoic acid
(B)nicotinic acid
(C)butyric acid
(D)ferulic acid

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統計： A(1), B(0), C(0), D(0), E(0) #2624612