25.下列那種上顎主連接體(major connector)的設計最缺乏剛性(rigidity)?
(A)全腭覆蓋式(complete palatal coverage)
(B)前後腭帶式(anterior-posterior palatal strap)
(C)單腭帶式(single palatal strap)
(D)U形腭板(U-palatal plate)

答案:登入後查看
統計: A(15), B(5), C(163), D(418), E(0) #1153141

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#4473687


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