阿摩線上測驗
15. 為得到 Optimum Visibility 牙醫師操作時之 vision and illumination 下列何者最理想？
(A) Direct vision and direct illumination
(B) Direct vision and indirect illumination
(C) indirect vision and direct illumination
(D) indirect vision and indirect illumination
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統計： A(1), B(0), C(0), D(0), E(0) #3493488
統計： A(1), B(0), C(0), D(0), E(0) #3493488
