13. 下列何種支架對頸椎的活動限制最小?
(A)軟頸圈(soft collar)
(B)頭環背心(halo-vest)
(C)費城頸圈(Philadelphia collar)
(D)胸骨-枕骨-下頜骨固定器(sterno-occipito-mandibular immobilizer, SOMI)

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統計: A(1), B(1), C(0), D(1), E(0) #2816070