答案1
代码
\documentclass[tikz, border={0pt 0pt 5pt 5pt}]{standalone}
\usetikzlibrary{shadows, shapes.symbols}
\begin{document}
\tikz[nodes={shape=tape, draw=green, tape bend top=none,
tape bend height=.3ex, fill=white, double copy shadow}]
\node foreach[count=\i] \t in {A, AB, CD} at (\i, 0) {\t};
\end{document}