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index d2426ee..2a59f30 100644
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@@ -9,5 +9,17 @@
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diff --git a/pages/hls__section_3.2_1686984934976_0.md b/pages/hls__section_3.2_1686984934976_0.md
index 96e6620..085003c 100644
--- a/pages/hls__section_3.2_1686984934976_0.md
+++ b/pages/hls__section_3.2_1686984934976_0.md
@@ -7,4 +7,11 @@ file-path:: ../assets/section_3.2_1686984934976_0.pdf
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diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index 154761d..238e191 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2901,6 +2901,8 @@
 							- LATER bi-variate normal distribution
 					- Independence of random variables ![section 3.2.pdf](../assets/section_3.2_1686984934976_0.pdf)
 						- Definition
+							- ((648d5b5f-f73b-422e-9fa7-df385242929d))
+							- ((648d5b7e-b666-4e51-b5fe-fa438d85c5b2))
 							-
 			- LATER 学积分
 			  :LOGBOOK: