diff --git a/assets/section_2.3_1686916498071_0.edn b/assets/section_2.3_1686916498071_0.edn
index f89eac4..2609ea1 100644
--- a/assets/section_2.3_1686916498071_0.edn
+++ b/assets/section_2.3_1686916498071_0.edn
@@ -10,4 +10,4 @@
                           :page 6},
                :content {:text "[:span]", :image 1686916764282},
                :properties {:color "yellow"}}],
- :extra {:page 11}}
+ :extra {:page 8}}
diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index c66d804..e77db88 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2610,10 +2610,12 @@
 		  :END:
 			- LATER Mind map
 			  deck:: 2023t1/math
+			  collapsed:: true
 			  :LOGBOOK:
 			  CLOCK: [2023-06-16 Fri 15:00:23]--[2023-06-16 Fri 15:18:37] =>  00:18:14
 			  :END:
 				- DONE Ch1
+				  collapsed:: true
 				  :LOGBOOK:
 				  CLOCK: [2023-06-16 Fri 15:31:10]--[2023-06-16 Fri 17:15:08] =>  01:43:58
 				  :END:
@@ -2726,6 +2728,7 @@
 			  CLOCK: [2023-06-03 Sat 21:07:06]--[2023-06-03 Sat 21:07:07] =>  00:00:01
 			  CLOCK: [2023-06-03 Sat 21:07:17]--[2023-06-03 Sat 21:07:18] =>  00:00:01
 			  :END:
+			- LATER Binomial coefficient
 			- LATER 写题（作业，对答案）
 			- LATER 总复习, 考试6.19，杰克6.8
 				- LATER 看完网课和串讲 [[Jun 17th, 2023]]