2.下列無載體(carrier-free)放射核種的比活度(specific activity, mCi/mg)排序,何者正確?
(A)
(B)
(C)
(D)
(E)一律給分
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統計: A(25), B(26), C(75), D(43), E(1697) #2972436
統計: A(25), B(26), C(75), D(43), E(1697) #2972436