选择题：2. 高危患者、婴幼儿心脑血管造影时最好选用的对比剂为( ) 。(本题4.0分) A、非离子对比剂

题目内容：

2. 高危患者、婴幼儿心脑血管造影时最好选用的对比剂为( ) 。(本题4.0分)
A、非离子对比剂
B、碘化钠
C、碘化油
D、泛影葡胺
E、以上都不是

参考答案：

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