我想将每个字母 (a)、(b)、(c)、(d) 改为正方形或圆形。你能帮我吗？
这是我的文档（有很多包因为我必须使用它们）。
% !TeX spellcheck = de_DE
\documentclass[a4paper,12pt]{article}[12pt]
\usepackage[italian]{babel}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{anysize}
\usepackage{graphicx}
\usepackage{float}
\usepackage{etoolbox}
\usepackage{amsbsy}
\usepackage{amsmath}
\usepackage{pbox}
\usepackage{fancyhdr}
\usepackage{cancel}
\usepackage{tabularx}
\usepackage{booktabs}
\usepackage{multirow}
\usepackage{longtable}
\usepackage{natbib}
%\usepackage{cite}
\usepackage{subfig}
\usepackage{xcolor}
%\usepackage{package}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{mathrsfs}
\usepackage{textcomp}
\linespread{1.5} %(default=1, MM1 = s1.4)
\frenchspacing
\newcommand{\abs}[1]{\lvert#1\rvert}
\usepackage{floatflt,epsfig}
\usepackage{multicol}
%\usepackage[a4paper,top=1.5cm,bottom=1.5cm,left=1.5cm,right=1.5cm]{geometry}
\usepackage[a4paper,top=1.5cm,bottom=1.0cm,left=1.5cm,right=1.5cm]{geometry}
\begin{document}
%\large
\pagestyle{empty}
\begin{center}
high school
\begin{minipage}{.10\textwidth}
\centering
\includegraphics[angle=0, width=.70\textwidth]
{logo_frisi.png}\\
%\emph{\small Didascalia}\bigskip
\end{minipage}
\begin{minipage}{.40\textwidth}
{test}
\end{minipage}
\end{center}
\vspace{0.2in}
\noindent {\makebox[\textwidth]{name:\enspace\hrulefill \, Date:\,\dots/11/15 \, Class:\,1\dots} }
\begin{enumerate}
\item Question 1
\begin{multicols}{2}
\begin{enumerate}
\item Answer 1
\item Answer 2
\item Answer 3
\item Answer 4
\end{enumerate}
\end{multicols}
\item Question 2?
\begin{multicols}{3}
\begin{enumerate}
\item Answer 1
\item Answer 2
\item Answer 3
\end{enumerate}
\end{multicols}
\item Question 3
\begin{multicols}{2}
\begin{enumerate}
\item Answer 1
\item Answer 2
\item Answer 3
\item Answer 4
\end{enumerate}
\end{multicols}
\item Question 4
\begin{multicols}{3}
\begin{enumerate}
\item Answer 1
\item Answer 2
\item Answer 3
\end{enumerate}
\end{multicols}
\begin{table}[htbp]
\centering
%\caption{Add caption}
\begin{tabular}{rcccccc}
\toprule
\textbf{Ex} & \textbf{1} & \textbf{2} & \textbf{3} & \textbf{4} & \textbf{TOT} \\
\midrule
\textbf{Punti} &
\dots\dots/1.0 &
\dots\dots/0.75 &
\dots\dots/0.75 &
\dots\dots/1.5 &
\dots\dots/4.0 \\
\bottomrule
\end{tabular}%
%\label{tab:addlabel}%
%\caption*{min: 2/10}
\end{table}%
\end{enumerate}
\end{document}
答案1
一个简单的解决方案是：
\documentclass{article}
\usepackage{enumerate}
\begin{document}
\begin{enumerate}[$\square$]
\item a
\item b
\end{enumerate}
\end{document}