工信部副部长:我国5G整体研发水平位居全球第一梯队
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You can't use `\prevdepth' in display math mode
When I want to use the marginpar,
something wrong happened, how to fix it and show the marginnote?
\documentclass{amsart}
\usepackage{lipsum,tikz}
\usepackage[top=1cm,bottom=1cm,left=0.5cm,right=0.5cm]...