27.正子攝影用放射核種主要以下列何種方法產生?
(A)迴旋加速器(cyclotron)
(B)核分裂(fission)
(C)中子活化(neutron activation)
(D)放射核種孳生器(radionuclide generator)
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統計: A(2217), B(56), C(63), D(95), E(0) #2039544
統計: A(2217), B(56), C(63), D(95), E(0) #2039544