题目内容：
设集合U={2,3,2a+1}，集合A={3,a}，若C∪A={2}，则实数a=____
参考答案：
答案解析：
选择题：设集合U={2,3,2a+1}，集合A={3,a}，若C∪A={2}，则实数a=____
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- 题目类型：选择题
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