56. 下列何種治療機最適合用於治療 1-2 mm 深的淺部腫瘤?
(A) orthovoltage therapy machines
(B) contact therapy machines
(C) superficial therapy machines
(D) megavoltage therapy machines
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統計: A(21), B(86), C(33), D(12), E(0) #1097025
統計: A(21), B(86), C(33), D(12), E(0) #1097025