40. Only the________tautomeric form of ribose exists in the nucleic acid structure?
(A)α-pyranose
(B) β-pyranose
(C) α-
furanose
(D) β-furanose
(E) all of the above.
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統計: A(0), B(1), C(0), D(1), E(0) #3191450
統計: A(0), B(1), C(0), D(1), E(0) #3191450