diff --git a/assets/section_3.1_1686980736370_0.edn b/assets/section_3.1_1686980736370_0.edn
index d8a4605..7db2206 100644
--- a/assets/section_3.1_1686980736370_0.edn
+++ b/assets/section_3.1_1686980736370_0.edn
@@ -58,4 +58,4 @@
                           :page 11},
                :content {:text "[:span]", :image 1686982102212},
                :properties {:color "yellow"}}],
- :extra {:page 11}}
+ :extra {:page 9}}
diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index 8945868..3826bb3 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2872,8 +2872,8 @@
 								- ((648d4b39-6c56-4dd6-af90-c3e1e81e90ff))
 								- Marginal Distribution:
 									- ((648d4b7a-64fa-4e2a-a5db-4970c647527c))
-									- LATER Examples ((648d4dce-72e2-4d0b-a70e-fefaa2b1ee4c)) #flashcard
-										- ((648d4dd7-6ecc-479d-bd1e-0280c9bb7155))
+								- LATER Examples ((648d4dce-72e2-4d0b-a70e-fefaa2b1ee4c)) #flashcard
+									- ((648d4dd7-6ecc-479d-bd1e-0280c9bb7155))
 			- LATER 学积分
 			  :LOGBOOK:
 			  CLOCK: [2023-06-03 Sat 17:05:07]--[2023-06-03 Sat 17:05:08] =>  00:00:01