为什么第二页的页眉有双重引用？

Question

\documentclass[a4paper,12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{authblk}
\usepackage{graphicx}
\usepackage{mathptmx}
\usepackage[english]{babel}
\usepackage[singlespacing]{setspace}
\usepackage[headheight=1in,margin=1in]{geometry}
\usepackage{fancyhdr}
\usepackage[english]{babel}
%\usepackage[backend=bibtex,style=numeric,natbib=true]{biblatex}
\usepackage{float}
\usepackage{biblatex}
\addbibresource{sample.bib}
\renewcommand{\headrulewidth}{0pt}
\pagestyle{fancy}
\chead{
   THIS IS HEADER
 }

\chead{%
TITLE
}
\graphicspath{{images/}}

\title{Insert Title Here}

\author[]{} % Please leave Author-field blank for blind review and remove information that may identify the author(s)
 
\date{}

\begin{document}

\maketitle
\thispagestyle{fancy}

\vspace{-6em}
\begin{center}
\textbf{\textit{Keywords: Please provide 5 keywords that describe your work}}
\newline
\end{center}

\section*{Abstract}

MainBody \ref{A}.

\printbibliography



\end{document}

下边是sample.bib：

@misc{A, title={some title}, volume={25}, number={11}, journal={First Monday}, author={A,B,C}, year={2020}, month={Oct.} }

Answer 1

发布参考书目的列标题是biblatex(和标准 LaTeX thebibliography) 的标准行为，并且这些标题会被拾取fancyhdr。

该效果可以biblatex在

\documentclass[a4paper,12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{fancyhdr}
\usepackage[english]{babel}
\usepackage{biblatex}

\addbibresource{biblatex-examples.bib}

\renewcommand{\headrulewidth}{0pt}
\pagestyle{fancy}

\chead{TITLE}

% just for testing
\usepackage{blindtext}

\begin{document}
\section{Lorem}
\blindtext

\Blinddocument

MainBody \cite{sigfridsson}.

\printbibliography
\end{document}

并使用标准thebibliography/BibTeX

\documentclass[a4paper,12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{fancyhdr}
\usepackage[english]{babel}


\renewcommand{\headrulewidth}{0pt}
\pagestyle{fancy}

\chead{TITLE}


\usepackage{blindtext}

\begin{document}
\section*{Abstract}

\section{Lorem}
\blindtext

\Blinddocument

MainBody \cite{inbook-full}.

\bibliographystyle{plain}
\bibliography{xampl}
\end{document}

在这些示例中，请注意其他\section命令如何生成列标题。

解决方案取决于你想要什么。如果你想删除所有分区列标题，请替换

\pagestyle{fancy}
\chead{
   THIS IS HEADER
 }

\chead{%
TITLE
}

和

\pagestyle{fancy}

\fancyhead{}
\fancyhead[c]{TITLE}

IE

\documentclass[a4paper,12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{fancyhdr}
\usepackage[english]{babel}
\usepackage{biblatex}

\addbibresource{biblatex-examples.bib}

\renewcommand{\headrulewidth}{0pt}
\pagestyle{fancy}

\fancyhead{}
\fancyhead[c]{TITLE}

% just for testing
\usepackage{blindtext}

\begin{document}
\section{Lorem}
\blindtext

\Blinddocument

MainBody \cite{sigfridsson}.

\printbibliography
\end{document}

如果你想保留分区列标题，你可以尝试类似

\documentclass[a4paper,12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{fancyhdr}
\usepackage[english]{babel}
\usepackage{biblatex}

\addbibresource{biblatex-examples.bib}

\renewcommand{\headrulewidth}{0pt}
\pagestyle{fancy}

\fancyhead[c]{TITLE}

\makeatletter
\defbibheading{bibliography}[\refname]{%
  \section*{#1}%
  \@mkboth{\abx@MakeMarkcase{#1}}{}}
\makeatother

% just for testing
\usepackage{blindtext}

\begin{document}
\section{Lorem}
\blindtext

\Blinddocument

MainBody \cite{sigfridsson}.

\printbibliography
\end{document}