diff --git a/assets/section_2.3_1686916498071_0.edn b/assets/section_2.3_1686916498071_0.edn
index f641ec6..989ee98 100644
--- a/assets/section_2.3_1686916498071_0.edn
+++ b/assets/section_2.3_1686916498071_0.edn
@@ -46,4 +46,4 @@
                           :page 20},
                :content {:text "[:span]", :image 1686918015117},
                :properties {:color "yellow"}}],
- :extra {:page 20}}
+ :extra {:page 21}}
diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index d0009ca..49c7267 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2726,7 +2726,7 @@
 								- ((648c5298-fb84-4e9c-b816-7df1a7ad9a66)) #flashcard
 								  collapsed:: true
 									- ((648c52d9-ea03-4835-8080-52ba5e6c3122))
-							- Expectation of compound **functions**: (Expectation of Functions of a Random Variable)
+							- Expectation of compound **functions**: (Expectation of Functions of a Random Variable) (Replace $$x$$ with $$g(x)$$) #flashcard
 								- ((648c5381-49cd-4701-ba48-31c0e21474a7))
 							-
 			- LATER 学积分