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多項(xiàng)選擇題

診斷惡性骨腫瘤的診斷依據(jù)是()

A.浸潤性骨質(zhì)破壞
B.有骨膜反應(yīng)
C.有軟組織腫塊
D.破壞區(qū)內(nèi)有死骨
E.Codman三角

單項(xiàng)選擇題

Field of view( FOV) relates to the ( )

A.diameter of the patient apenure of the imager
B.maximum diameter of the patient
C.diameter of the area that isreconstructed
D.the diameter of a pixel