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 inject
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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

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增大
