diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index 69293c75..7882376d 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -582444,12 +582444,12 @@
     },
     "021588": {
         "id": "021588",
-        "content": "化简: $\\cos ^2(\\theta+15^{\\circ})+\\sin ^2(\\theta-15^{\\circ})+\\sin (\\theta+180^{\\circ}) \\cos (\\theta-180^{\\circ})$\\blank{50}.",
+        "content": "化简: $\\cos ^2(\\theta+15^{\\circ})+\\sin ^2(\\theta-15^{\\circ})+\\sin (\\theta+180^{\\circ}) \\cos (\\theta-180^{\\circ})$.",
         "objs": [],
         "tags": [
             "第三单元"
         ],
-        "genre": "填空题",
+        "genre": "解答题",
         "ans": "$1$",
         "solution": "",
         "duration": -1,
@@ -582465,7 +582465,8 @@
         ],
         "origin": "2025届高一下校本作业",
         "edit": [
-            "20230209\t王伟叶"
+            "20230209\t王伟叶",
+            "20240128\t王伟叶"
         ],
         "same": [],
         "related": [],