13 此圖是那一種矯正裝置?
(A)舌側弓線裝置(lingual arch)
(B)南斯氏維持弓線(Nance holding arch)
(C)可撤式擴張裝置(removable expansion appliance)
(D)四環擴張器(quad helix)
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統計: A(24), B(279), C(4), D(10), E(0) #901356
統計: A(24), B(279), C(4), D(10), E(0) #901356