52.下列何者屬於積層製造技術（additive manufacturing technology）？①computer-aided milling（CAM）②fused deposition modeling（FDM）③stereolithography（SLA）④selective laser melting（SLM）⑤direct metal laser sintering（DMLS）
(A)①②③④
(B)①②③⑤
(C)②③④⑤
(D)①②④⑤

Except for removable partial denture frameworks, most metal prostheses can be made by one or more of the following methods:
(1) sintering (or diffusion bonding) of burnished metal foil
(2) CAD-CAM (Computer-aided design and manufacturing or milling) processing of metal blocks
(3) copy milling of metal blocks
(4) electroforming of metal copings
(5) three-dimensional printing with metal powder followed by sintering
由上述描述可知 CAD/CAM 不屬於 three-dimensional printing (additive manufacturing technology)的一類
只剩C可選

以下補充課本敘述

Phillips' science of Dental Materials 12th edition p386.387
課本敘述有3.5 其他選項沒找到.....