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<img alt="" height="71" src="/api/uploads/1491394/in-rich-contentcreated_at=1647283592" width="563">(单选题)
.<img alt="" height="35" src="/api/uploads/1491395/in-rich-contentcreated_at=1647283592" width="64">
.<img alt="" height="33" src="/api/uploads/1491396/in-rich-contentcreated_at=1647283592" width="67">
.<img alt="" height="40" src="/api/uploads/1491397/in-rich-contentcreated_at=1647283592" width="63">
.<img alt="" height="38" src="/api/uploads/1491398/in-rich-contentcreated_at=1647283592" width="60">

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出自：2024年国家开放大学答案

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