10 此圖是那一種矯正裝置? 
(A)機能矯正裝置(activator)
(B)生物功能調節器(bionator)
(C)法蘭克功能性矯正裝置(Fränkel functional regulator)
(D)唇擋板(lip bumper)
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統計: A(15), B(14), C(180), D(18), E(0) #901353
統計: A(15), B(14), C(180), D(18), E(0) #901353