29.活度為10 mCi之99mTc,其質量約有幾公克?
(A)1.9×10-9
(B)3.8×10-9
(C)5.7×10-9
(D)7.6×10-9
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統計: A(1279), B(108), C(95), D(31), E(0) #965701
統計: A(1279), B(108), C(95), D(31), E(0) #965701