<p>【问题描述】<p>PV0000481011253380每周都会遇到同样的问题，四点的课进去之后全是上节课上讲的笔记</p>
<img class="fr-fic fr-dib" src="https://pmp.xuepeiyou.comhttps://yach-static.zhiyinlou.com/online/group/1780128345753/5gaawnxphjo/b6c9d877-cd58-4ff5-b01f-8f066d610b01.png" style="width: 30%;"/></p>