(natbib) press to continue in numerical citation style.的. Perhaps year over year is specific to only referring to the last year. 如何理解ytd和mtd指标ytd（year to date）和 mtd（month to date）是两个在财务分析和业务管理中常用的时间周期指标，理解如下：一、ytd（year to date）定.
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在使用 latex 添加参考文献时，若遇到package natbib error:
