40.承上題,74Ge之能量比74As能量低多少MeV?
(A)0.596
(B)0.94
(C)1.54
(D)2.56
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統計: A(147), B(88), C(195), D(301), E(0) #977902
統計: A(147), B(88), C(195), D(301), E(0) #977902