33.在計算屏蔽所需厚度時,下列何參數的增加不會增加屏蔽的厚度?
(A)workload
(B)use factor
(C)occupancy factor
(D)distance
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統計: A(94), B(78), C(178), D(863), E(0) #1050672
統計: A(94), B(78), C(178), D(863), E(0) #1050672