diff --git a/备课组/26届/lessons.json b/备课组/26届/lessons.json
index c62b83af..b8e83990 100644
--- a/备课组/26届/lessons.json
+++ b/备课组/26届/lessons.json
@@ -1603,12 +1603,13 @@
             "011967"
         ],
         "examples_adv": [
-            "011968"
+            "020520"
         ],
         "work_inclass": [
             "009526",
             "009527",
-            "009528"
+            "009528",
+            "011968"
         ],
         "homework": [
             "020637",
@@ -1617,7 +1618,6 @@
             "010189",
             "010193",
             "010195",
-            "020520",
             "020643"
         ],
         "remarks": ""