31.CT window level設為-600 HU, window width設為1700 HU時,用於下列何部位的評估最為適當?
(A)lung
(B)mediastinum
(C)liver
(D)bone
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統計: A(340), B(25), C(25), D(89), E(0) #3492019
統計: A(340), B(25), C(25), D(89), E(0) #3492019