問題詳情
80.直線加速器每月的品保工作應保持劑量輸出誤差在多少%內？
(A)5
(B)3
(C)2
(D)1
(A)5
(B)3
(C)2
(D)1
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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