40. Ribose exists in RNA as the stru ure of_______.
(A) a-pyranose
(B)β-pyranose
(C) a-furanose
(D) β-furanose
(E) all of the above.
答案:登入後查看
統計: A(0), B(1), C(0), D(2), E(0) #2844133
統計: A(0), B(1), C(0), D(2), E(0) #2844133