diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index 3cb0837..973c892 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2824,6 +2824,7 @@
 							- Properties
 								- mean and variance :-> ((648d1bfd-fcfb-43ed-801e-0de972c24cb1))
 							- Example
+								-
 						- Exponential Distribution
 						- Normal Distribution
 			- LATER 学积分