61.下列有關Waters' projection之敘述,何者錯誤?
(A)canthomeatal line與底片夾成37°
(B)canthomeatal line與底片夾成47°
(C)下頦(chin)向上向前貼著頂住底片夾
(D)可以避開temporal bone的岩部(petrous ridge),讓maxillary sinus的呈像更清楚

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統計: A(219), B(646), C(27), D(14), E(0) #1845311

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