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    【题目】两个不相等的复数z1＝a＋bi（a，b∈R），z2＝c＋di（c，d∈R），若z1与z2在复平面内的对应点关于虚轴对称，则a，b，c，d之间的关系为（ ）

    A.a＝－c，b＝d B.a＝－c，b＝－d

    C.a＝c，b＝－d D.a≠c，b≠d

    【答案】A

    【解析】设z1＝a＋bi（a，b∈R）的对应点为P（a，b），

    z2＝c＋di（c，d∈R）的对应点为Q（c，d）.

    ∵P与Q关于y轴对称，∴a＝－c，b＝d.

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