20 動態楔形濾器(dynamic wedge)需採用何種準直儀最易達成?
(A)independent jaws
(B)symmetric collimators
(C)multileaf collimators
(D)universal wedge
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統計: A(19), B(3), C(33), D(3), E(0) #2261583
統計: A(19), B(3), C(33), D(3), E(0) #2261583