单选题：资产组合理论建立在“一价原理”的基础上，认为两种具有相同风险的证券投资组合不能以不同的期望收益率出售。（　　）

题目内容：
资产组合理论建立在“一价原理”的基础上，认为两种具有相同风险的证券投资组合不能以不同的期望收益率出售。（　　）
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