% 致谢章节

\section*{致谢}
\addcontentsline{toc}{section}{致谢\tiny{\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad.\quad}}

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\rightline{\zihao{3}{苏伟强\quad\qquad}}
\rightline{二O一九年五月十九日于广州}