diff --git a/demo.pdf b/demo.pdf
index 60e7335..097ae8c 100644
Binary files a/demo.pdf and b/demo.pdf differ
diff --git a/demo.tex b/demo.tex
index d9a215e..debbf91 100644
--- a/demo.tex
+++ b/demo.tex
@@ -124,7 +124,7 @@
 \end{lstlisting}
 %结论
 
-自查重模式下使用$\backslash$ncite、$\backslash$nupcite、$\backslash$nref命令进行的引用，引用标注将不显示。使用方式同$\backslash$cite、$\backslash$upcite、$\backslash$ref 。
+自查重模式下使用$\backslash$ncite、$\backslash$nupcite、$\backslash$nref命令进行的引用，引用标注将不显示。使用方式同$\backslash$cite、$\backslash$upcite、$\backslash$ref。
 
 \include{chapters/conclusion}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%