54.下列何種放射治療裝備,所造成的物理半影最大?
(A)rounded-end MLC
(B)collimator jaws
(C)Cerrobend blocks
(D)bolus
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統計: A(754), B(108), C(120), D(27), E(0) #3283014
統計: A(754), B(108), C(120), D(27), E(0) #3283014