44.可撤式局部義齒金屬支架(metal framework)製作時,下列何種設計宜用 single sprue?
(A)腭板(palatal plate)
(B)腭槓(palatal bar)
(C)U型腭連接體(U-shaped palatal connector)
(D)前後腭帶型連接體(anterior and posterior palatal strap-type connector)
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統計: A(210), B(81), C(26), D(13), E(0) #1032459
統計: A(210), B(81), C(26), D(13), E(0) #1032459