我试图将这个双列图像添加到此页面的顶部；但是，它会显示在文本下方。
\begin{figure*}[htb!]
\label{fig:2}
\includegraphics[trim=0cm 3.5in 0cm 3.5in,clip=true, width=6in]{2}
\caption{asdfasdf}
\end{figure*}
如果没有 [!]，图像会转到下一页，而如果加上 [H]，\usepackage{float}图像根本不会出现。非常感谢任何帮助，谢谢！
其余代码如下：
\documentclass[aps,twocolumn,secnumarabic,balancelastpage,amsmath,amssymb,nofootinbib]{revtex4}
\usepackage{float}
\usepackage{flushend}
\usepackage{chapterbib} % allows a bibliography for each chapter (each labguide has it's own)
\usepackage{color} % produces boxes or entire pages with colored backgrounds
\usepackage{graphics} % standard graphics specifications
\usepackage[pdftex]{graphicx} % alternative graphics specifications
\usepackage{longtable} % helps with long table options
\usepackage{epsf} % old package handles encapsulated post script issues
\usepackage{bm} % special 'bold-math' package
\usepackage{verbatim} % for comment environment
\usepackage[colorlinks=true]{hyperref} % this package should be added after all others
\begin{document}
Blah Blah Text
\begin{figure*}[htb]
\includegraphics[trim=0cm 4.4in 0cm 4.4in,clip=true, width=6in]{ringdown_freqscan}
\caption{Left:Blah Blah}
\label{fig:rdfs}
\end{figure*}
MORE TEXT
\par
Designed by UF researchers, the suck stick is inserted into the top
of the dewar and contains a port at its top to pump out its inside.
At the
\begin{figure*}[htb!]
\includegraphics[trim=0cm 3.5in 0cm 3.5in,clip=true, width=6in]{damp_freq}
\caption{asdfasdf}
\label{fig:damp_freq}
\end{figure*}
very base of the suck stick is a capillary intended to allow a very
specific amount of the contents of the dewar into the cryostat where
MORE TEXT
\end{document}
第二个数字夹在句子的中间，因为那是新页面的开始点。
我应该补充一点，我可以用第一张图片来做到这一点，如下所示：
附件是两张图片（我在实际代码中使用 pdf，但在这里将它们链接为 png，因为 SE 无法链接 pdf。） https://i.stack.imgur.com/DWzP3.png https://i.stack.imgur.com/ax8h3.png
