净值估算数据按照基金历史披露持仓和指数走势估算，不构成投资建议，仅供参考，实际以基金公司披露净值为准。 净值估算是按照基金历史定期报告公布的持仓和指数走势预测当天净值。预估 ...

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活动内容：讲解古代建筑中的榫卯结构原理并展示榫卯的建筑模型，让游客参与模型的组建和拆解，进一步了解榫卯知识。