23 下列何種鉤臂在義齒調整時最容易做微調整?
(A)鎳-鉻(Ni-Cr)合金半圓(half round)鑄造牙鉤臂
(B)鈷-鉻(Co-Cr)合金半圓(half round)鑄造牙鉤臂
(C)半圓(half round)鍛製金屬線(wrought wire)牙鉤臂
(D)圓型鍛製金屬線(round wrought wire)牙鉤臂
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統計:
A(19), B(22), C(75), D(234), E(0) #902690
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(A) 鎳-鉻(Ni-Cr)合金半圓鑄造...