LaTeX技巧551：twoside时两个项目之间的距离太远怎么办？

当设置为twoside的时，可能是因为caption比较长，导致list of figure 里面两个之间的距离特别远，不过如果是oneside就比较好。实际上除了listoffigures还有很多地方出现很大空白，特别是当加了双倍行距就 特别难看，请问问题出在哪里，有什么解决办法？多谢

\documentclass[twoside]{report}
\usepackage{graphicx}

\begin{document}
\listoffigures

\newpage
\begin{figure}
\centering
\caption{This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is aThis is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is aThis is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is a caption, This is aThis is a }
\label{fig3:fig1}
\end{figure}


\begin{figure}
\centering
\caption{This is a caption, This is a caption, This is a caption, This is a caption, This is a }
\label{fig3:fig2}
\end{figure}

\begin{figure}
\centering
\caption{This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a verycaption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very long caption. This is a very}
\label{fig3:fig3}
\end{figure}

\end{document}


解释说明：
【leoliu】
建议你目录里面用个短标题。即用
\caption[short]{long long long long long long}

间距变大是因为标题不被打断，而双面要求左开页和右开页底部对齐（\flushbottom）。如果用\raggedbottom就是单面的效果。