diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index a8a7e8c..1579a6b 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2730,10 +2730,8 @@
 									- ((648c52d9-ea03-4835-8080-52ba5e6c3122))
 							- Expectation of compound **functions**: (Expectation of Functions of a Random Variable) (Replace $$x$$ with $$g(x)$$) #flashcard
 							  id:: 648c52dc-1cfe-4c05-888a-d8ddff10c24e
-							  collapsed:: true
 								- ((648c5381-49cd-4701-ba48-31c0e21474a7))
 							- Properties:
-							  collapsed:: true
 								- ((648c568e-c617-4699-b217-fd4e8ea205bc))
 								- Linerarity:
 								  ((648c569c-e3d0-445d-acf6-caf0e271f7be))
@@ -2741,16 +2739,13 @@
 							- Definition:
 								- ((648c57b6-225a-4926-9ce1-8d0e7aae1391))
 								- Alternative calculation:
-								  collapsed:: true
 									- ((648c580f-8ccb-4fd3-bc0d-24ab109f240d))
 								- ((648c57d7-8f76-4520-8bc0-b54953bbe4cf))
 								- Standard variance: ((648c57e8-e79a-48b6-98cf-f68dc0e5277e))
 								- Properties
-								  collapsed:: true
 									- ((648c5982-4b4f-4935-ad4f-de93462bc564))
 									- ((648c5a58-62da-4c15-b22d-00e839b8f909))
 								- Examples
-								  collapsed:: true
 									- ((648c5b1c-533d-434a-b118-6a61cc9abb3a)) #flashcard
 									  id:: 648c5ae4-9e42-4c55-86d0-b0a19dfcb4dc
 									  collapsed:: true