42.下列那一項技術是組成spiral/helical CT研發成功的主要關鍵?
(A)slip-ring technology
(B)pencil beam
(C)fan beam
(D)parallel beam
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統計: A(1908), B(30), C(98), D(10), E(0) #2868110
統計: A(1908), B(30), C(98), D(10), E(0) #2868110