42.某醫院訂購125I作為插種治療的射源,125I植入病患體內時活性為0.48 mCi/seed,請問一週前125I送抵醫院時,活性為多少
mCi/seed?(125I之半衰期為59.4天)
(A)0.48
(B)0.52
(C)0.60
(D)0.68
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統計: A(182), B(1559), C(54), D(54), E(0) #1382421
統計: A(182), B(1559), C(54), D(54), E(0) #1382421