5.下列何者為58Co-cyanocobalamin的合成方法?
(A)生物合成(biosynthesis)
(B)同位素交換(isotope exchange)
(C)反跳標幟(recoil labeling)
(D)激發標幟(excitation labeling)
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統計: A(562), B(240), C(21), D(24), E(0) #1070330
統計: A(562), B(240), C(21), D(24), E(0) #1070330