diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index 7cad349b..ed660e85 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -582843,7 +582843,7 @@
     },
     "021472": {
         "id": "021472",
-        "content": "已知常数$a \\in \\mathbf{R}$, 角$\\alpha$的终边经过点$P(3 a-2, a+2)$, 且满足$\\cos \\alpha<0$, $\\sin \\alpha>0$, 则$\\alpha$的取值范围为\\blank{50}.",
+        "content": "已知常数$a \\in \\mathbf{R}$, 角$\\alpha$的终边经过点$P(3 a-2, a+2)$, 且满足$\\cos \\alpha<0$, $\\sin \\alpha>0$, 则$a$的取值范围为\\blank{50}.",
         "objs": [],
         "tags": [
             "第三单元"
@@ -582863,7 +582863,8 @@
         ],
         "origin": "2025届高一下校本作业",
         "edit": [
-            "20230209\t王伟叶"
+            "20230209\t王伟叶",
+            "20240221\t王伟叶"
         ],
         "same": [],
         "related": [],