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    【题目】“公地悲剧”理论认为公地作为一种资源或财产有许多拥有者，虽然每个人都有使用权，但没有权利阻止他人使用，从而造成资源的过度使用乃至枯竭。过度砍伐的森林、油腻臭滑的街道、污染严重的河流和空气等，都是“公地悲剧”的典型例子。这一理论对我国经济改革的启示

    ①完善所有权制，保障市场主体对财产的所有权

    ②完善市场体系，发挥市场配置资源的决定作用

    ③完善法律法规，强力规范市场主体的经济行为

    ④完善信用体系，不断健全和完善失信惩戒机制

    A．①③ B．②④ C．①② D．③④

    【答案】A

    【解析】“公地悲剧”是由于所有权分配问题导致的，故启示我们要重视所有权分配，完善所有权制度，①符合题意。材料反映的是市场自发调节的局限性，②不符合材料主旨。公地由于人们的滥用造成资源的过度使用乃至枯竭，这启示我们要规范市场主体的行为，③符合题意。“公地悲剧”不是因“信用缺失”导致的，④与题意无关。

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