42.5 Ci等於下列何者?
(A)1.85×1010 Bq
(B)1.85×1011 Bq
(C)1.85×1012 Bq
(D)1.85×1013 Bq
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統計: A(50), B(1486), C(70), D(6), E(0) #1041530
統計: A(50), B(1486), C(70), D(6), E(0) #1041530