注入造影剂后，血液对X射线的衰减能力（）The ability of blood to attenuate X-rays after injection of contrast agent（）

注入造影剂后，血液对X射线的衰减能力（）The ability of blood to attenuate X-rays after injection of contrast agent（）
A.增加Increase
B.减少decrease
C.不变unchange
D.视造影剂的浓度而定Depending on the concentration of the contrast agent
正确答案：增加Increase