◎ 题干
已知data:image/png;base64,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,其中i是虚数单位,那么实数a等于(  )
A.3 B. C.-3 D.-
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“已知a+3i1-3i=3i,其中i是虚数单位,那么实数a等于()A.3B.3C.-3D.-3…”主要考查了你对  【复数相等的充要条件】【复数的四则运算】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。