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答案1
可能是这样:
\documentclass{article}
\usepackage[svgnames]{xcolor}
\usepackage{sectsty}
\allsectionsfont{\normalfont\sffamily\Large}
\usepackage{lipsum}
\title{\color{DarkBlue}\sffamily\Huge Hypothesis Testing in \\ Linear Regression Models}
\author{}
\date{}
\begin{document}
\maketitle
\section{Introduction}
\lipsum
\end{document}