diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index 5d1d0b65..0dcc2e4b 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -590638,7 +590638,7 @@
             "第三单元"
         ],
         "genre": "解答题",
-        "ans": "最大张角的正切值为$\\dfrac{\\sqrt{2}}{4}$, 此时学生距离时钟$\\sqrt{0.18}$米.",
+        "ans": "最大张角的正切值为$\\dfrac{\\sqrt{2}}{4}$.",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -590653,7 +590653,8 @@
         ],
         "origin": "2025届高一下校本作业",
         "edit": [
-            "20230209\t王伟叶"
+            "20230209\t王伟叶",
+            "20240214\t王伟叶"
         ],
         "same": [],
         "related": [],