我展示了代数多项选择题测试的前三个问题。第一个问题中的选项使用环境显示tabbing，第二个和第三个问题中的选项使用enumerate。我希望按照以下规范仅使用一个环境来显示选项。
环境的（不可见的）左边距应\hphantom{\noindent {\bf 1.) }}与左边距保持一定距离。
由于我使用的是默认字体大小 10pt，所以行间距是 12pt。（一位排字员说，行高与字体大小的比率等于 1.2 时，行与行之间会留有足够的空间，从而获得和谐的外观。）第二个问题中的选择是模式中设置的分数。那么行间距应该是多少呢？我认为环境或 环境displaystyle中使用的行间距是合适的。aligngather
第一和第三个问题的第一列要与第二个问题中的列对齐。
在第一和第三个问题中，第一行中的选项应为a.)和b.)，第二行中的选项应为c.)和d.)，第三行中的选项应为e.)。此外，列之间的间距应为2.5in。如何\begin{multicols}{2}在创建表格的环境之前使用 来指定此值？
\documentclass{amsart}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{enumitem}
\usepackage{multicol}
\begin{document}
\noindent {\bf 1.) }$A$, $B$, $C$, $D$, $E$, and $F$ are six points in the Cartesian plane. A line is drawn if, and only if, it contains two of these points. If no line contains three of the given points, how many lines are drawn?
\begin{tabbing}
\noindent\hphantom{{\bf 1.) }} \= \hspace{2.5in} \= \kill
\> {\bf{a.) }}15 \> {\bf{b.) }}18 \\
\> {\bf{c.) }}20 \> {\bf{d.) }}30 \\
\> {\bf{e.) }}36
\end{tabbing}
\vskip0.25in
\noindent {\bf 2.) }A rectangular pen enclosing 4,000 square meters is to be made from split rail fencing along the span of one side of a barn. The pen is to be divided into three smaller, rectangular regions with more split rail fencing. If the side of this barn bordering the pen is $y$ meters long, how many meters of split rail fencing is needed to make the pen?
\begin{multicols}{2}
\begin{enumerate}[label=\bfseries \alph*.), itemsep=\baselineskip, itemindent=0mm]
\item $y + \dfrac{4,000}{y}$
\item $y + \dfrac{16,000}{y}$
\item $y + \dfrac{16,000}{3y}$
\item $3y + \dfrac{8,000}{3y}$
\item $3y + \dfrac{16,000}{3y}$
\end{enumerate}
\end{multicols}
\vskip0.25in
\noindent {\bf 3.) }Some bacteria are being cultured in a laboratory. The population of the bacteria in the culture $t$ days after the culture began is modeled by the function
\begin{equation*}
P(t) = 3,000 \left(2^{\frac{t}{4}}\right) .
\end{equation*}
By how many bacteria does the population increase from the end of the $4^{\mathrm{th}}$ day to the end of the $16^{\mathrm{th}}$ day?
\begin{multicols}{2}
\begin{enumerate}[label=\bfseries \alph*.), itemsep=\baselineskip, itemindent=0mm]
\item 6,000 \\
\item 24,000 \\
\item 36,000 \\
\item 42,000 \\
\item 48,000
\end{enumerate}
\end{multicols}
\end{document}
答案1
您可以使用tasks模拟多列枚举环境的包来实现这一点。首先使用您的原始tabbing环境进行演示，然后使用两个tasks环境进行演示。几句解释：label-offset是标签和项目之间的距离；item-indent就像leftmargin在列表中一样，我们有关系：item-indent=label-width+item-indent。
\documentclass{amsart}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{enumitem}
\usepackage{tasks}
\settasks{label-format=\bfseries, label-offset=0.85em,counter-format =tsk[a].) , column-sep =8pt, item-indent=4em, after-item-skip=0ex plus 0.25ex, after-skip=3ex}
\begin{document}
\noindent {\bf 1.) }$A$, $B$, $C$, $D$, $E$, and $F$ are six points in the Cartesian plane. A line is drawn if, and only if, it contains two of these points. If no line contains three of the given points, how many lines are drawn?
\begin{tabbing}
\noindent\hphantom{{\bf 1.) }} \= \hspace{2.5in} \= \kill
\> {\bf{a.) }}15 \> {\bf{b.) }}18 \\
\> {\bf{c.) }}20 \> {\bf{d.) }}30 \\
\> {\bf{e.) }}36
\end{tabbing}
\vskip0.25in
\noindent {\bf 2.) }A rectangular pen enclosing 4,000 square meters is to be made from split rail fencing along the span of one side of a barn. The pen is to be divided into three smaller, rectangular regions with more split rail fencing. If the side of this barn bordering the pen is $y$ meters long, how many meters of split rail fencing is needed to make the pen?
\begin{tasks}[after-item-skip=0.6ex plus 0.5ex](2)
\task $ y + \dfrac{4,000}{y} $
\task $ y + \dfrac{16,000}{y} $
\task $ y + \dfrac{16,000}{3y} $
\task $ 3y + \dfrac{8,000}{3y} $
\task $ 3y + \dfrac{16,000}{3y} $
\end{tasks}
\noindent {\bf 1.) }$A$, $B$, $C$, $D$, $E$, and $F$ are six points in the Cartesian plane. A line is drawn if, and only if, it contains two of these points. If no line contains three of the given points, how many lines are drawn?
\begin{tasks}(2)
\task 15
\task 18
\task 20
\task 30
\task 36
\end{tasks}
\end{document}
