47. In an anaerobic muscle preparation, lactate formed from glucose labeled in C-2 would be labeled in:
(A) all three carbon atoms.
(B) only the carbon atom carrying the OH.
(C) only the carboxyl carbon atom.
(D)only the methyl carbon atom.
(E) the methyl and carboxyI carbon atoms.
答案：99
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中