19 要對第 1 到 3 節胸椎施予縱向牽拉(longitudinal traction)時,外來拉力最好來自:
(A)頭顱
(B)肩膀
(C)骨盆
(D)下肢
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統計: A(107), B(118), C(50), D(8), E(0) #653580
統計: A(107), B(118), C(50), D(8), E(0) #653580