58.放射治療固定模具 radiolucent plastic cushions 的內部填充材料為何種物質?
(A)tiny polystyrene balls
(B)tiny polyurethane balls
(C)tiny thermoplastic balls
(D)tiny foam rubber balls
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統計: A(1008), B(399), C(337), D(71), E(0) #2742338
統計: A(1008), B(399), C(337), D(71), E(0) #2742338