28. Which of the following would not produce nuclear magnetic resonance?
(A) 2 H
(B) 14N
(C) 16O
(D) 19F
(E) 11B
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統計: A(4), B(1), C(44), D(1), E(1) #2053825
統計: A(4), B(1), C(44), D(1), E(1) #2053825