由于某种原因，我的表格总是跟在文本后面，表格不是浮动吗？我希望浮动按照定义的顺序出现。
\documentclass[11pt]{amsart}
\usepackage{geometry} % See geometry.pdf to learn the layout options. There are lots.
\geometry{letterpaper} % ... or a4paper or a5paper or ...
%\geometry{landscape} % Activate for for rotated page geometry
%\usepackage[parfill]{parskip} % Activate to begin paragraphs with an empty line rather than an indent
\usepackage{graphicx}
\usepackage{amssymb}
\usepackage{epstopdf}
\DeclareGraphicsRule{.tif}{png}{.png}{`convert #1 `dirname #1`/`basename #1 .tif`.png}
\title{Brief Article}
\author{The Author}
%\date{} % Activate to display a given date or no date
\begin{document}
\maketitle
%\section{}
%\subsection{}
Panel c, which has a gate on the 618 keV transition, shows cleanly the decay path labeled as Band 1 of the level-scheme illustrated in figure \ref{w162_levels}, in panel b, gating on the 450 keV $2^+ \rightarrow 0^+$ transition, this band still dominates the spectrum, but it is clear that there are other linking structures. Band 2 was confirmed by gating on the 535 keV transition, which appears to decay into Band 1 via the 296 keV transition.
\begin{figure}[htb]
\centering
\includegraphics[width=\textwidth]{147ang.eps}
\caption{a,b,c,d}
\label{w162spec}
\end{figure}
\begin{figure}[htb]
\centering
\includegraphics[width=\textwidth]{ang.eps}
\caption{Level Scheme deduced for , transition energies are given in keV and relative intensities are represented by arrow widths.}
\label{w162_levels}
\end{figure}
\begin{table}[htb]
\centering
\begin{tabular}{ccccc}
\hline\hline
$E_\gamma$ (keV) & $I_\gamma$ & $A_2$&$A_4$ & Multipolarity \\
\hline
99.4 & 3.7 & &&(E2)\\
%144.5 & \multirow{2}{*}[1pt]{$\left.\rule{0cm}{0.35cm}\right\} $ 29.2} & -0.48& 0.60 * &M1/E1? \\
143.5 & 3.8 & -0.48& 0.60 * &M1/E1? \\
146.8& 24.6 & -0.33,&-0.09 *& M1 \\
167.5 & 7.0 & &&(E2)\\
179.3 & 83.7& -0.18& 0.09 &M1/E1?\\
229.6 & 12.3& -0.44&1.02 &M1/E1?\\
480.8 & 14.4& 0.30& 0.18 & E2 \\
489.2 & 35.6 & 0.31& 0.20 & E2 \\
544.2 & 97.9 & 0.17&-0.01& E2 \\
557.7 & 66.8 & 0.20& 0.07& E2 \\
569.7 & 36.6 & 0.19&-0.11& E2 \\
589.2 & 49.9 & 0.18& -0.35 & E2 \\
597.8& 100.0 & 0.17& -0.09 & E2 \\
\hline\hline
\end{tabular}
\caption{* is unresolved doublets}
\label{tab}
\end{table}
\end{document}
我希望这个工作示例能够展示我的问题，我无法放置我的图片，因为它们是.eps 格式，但我认为任何图片都应该是一样的。