71.下列何者不屬於直線加速器測試與驗收之項目?
(A)mechanical isocenter
(B)field flatness
(C)jaw symmetry
(D)source calibration
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統計: A(47), B(89), C(233), D(761), E(0) #3283531
統計: A(47), B(89), C(233), D(761), E(0) #3283531