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doc_related/preface.tex

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 {\Huge\textbf{山东第二医科大学指南}}\\[10pt]
 （简称：\colored{171}{79}{36}{321指南}）\\[30pt]
 %{\large\textbf{\colored{59}{100}{220}{3.0.7}}}\vspace*{-25pt}}
-{\large\colored{255}{0}{0}{319-Preview}}\vspace*{-25pt}}
+{\large\colored{255}{0}{0}{320-Preview}}\vspace*{-25pt}}
 \author{LinkChou\thanks{Compiled by \LaTeXe, CC BY-SA 4.0 LICENSE.\qquad%
         \uline{\href{Mailto:[email protected]}{Mailto: [email protected]}}\\
         \textbf{敬告：}\\