diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index 4b4d768..9f246f9 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -959,6 +959,7 @@
 					- LATER review lab2
 					- LATER SQL join
 			- DONE Block 2
+			  collapsed:: true
 				- DONE EER
 					- Most useful additional concept of EER model:
 					  specialization/generalization.
@@ -1045,7 +1046,6 @@
 						- update database and formulate queries using INSERT, UPDATE, and DELETE.
 						- LATER [#A] Write some SQL!!
 			- DONE Block 3
-			  collapsed:: true
 				- DONE DB transaction management
 					- DONE Deadlock and how it can be resolved. #flashcard
 					  id:: 64841da4-d8ce-46f5-bbe6-4dee620cde75