CT和DR的相同点是（）The similarity between CT and Dr is（）

A.都是反射成像Both are reflection imaging

B.都是对吸收衰减系数μ的重建Both are reconstruction of absorption attenuation coefficient μ

C.都使用了X射线作为成像介质Both use X-rays as the imaging medium

D.都能看清组织结构之间的位置关系Both can show clearly the relationship between organizational structures

正确答案：都使用了X射线作为成像介质Both use X-rays as the imaging medium