75.下列何種現象無質能互換(mass energy conversion)?
(A)核蛻變(nuclear decay)
(B)光電效應(photoelectric effect)
(C)成對效應(pair production)
(D)互毀(annihilation)
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統計: A(0), B(0), C(1), D(0), E(0) #3977424
統計: A(0), B(0), C(1), D(0), E(0) #3977424