42. Zimmermann 反應測定17 ketosteroid時,其呈色劑是:
(A)m-dinitrobenzene
(B)phenylenediamine
(C)phosphotunstic acid
(D)tetrazonium
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統計: A(0), B(1), C(0), D(0), E(0) #4030190
統計: A(0), B(1), C(0), D(0), E(0) #4030190