19.已知X光片的光密度D(photographic density)為1.25,則不透明度I
0/It
為何?
(A)12.50
(B)17.78
(C)19.65
(D)21.25
答案:登入後查看
統計: A(130), B(1005), C(114), D(35), E(0) #966336
統計: A(130), B(1005), C(114), D(35), E(0) #966336