题目组成DNA的碱基是:A. (ATCU)B. (AGCT)C. (GCTU)D. (AGCU)E. (AGUT)组成DNA的碱基是:A. (ATCU)B. (AGCT)C. (GCTU)D. (AGCU)E. (AGUT)题目解答答案B. (AGCT)